diff options
Diffstat (limited to 'drivers/media/pci/cx23885/cx23885-core.c')
-rw-r--r-- | drivers/media/pci/cx23885/cx23885-core.c | 362 |
1 files changed, 118 insertions, 244 deletions
diff --git a/drivers/media/pci/cx23885/cx23885-core.c b/drivers/media/pci/cx23885/cx23885-core.c index edcd79db1e4e..331eddac7222 100644 --- a/drivers/media/pci/cx23885/cx23885-core.c +++ b/drivers/media/pci/cx23885/cx23885-core.c @@ -13,10 +13,6 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/init.h> @@ -420,39 +416,23 @@ static int cx23885_risc_decode(u32 risc) return incr[risc >> 28] ? incr[risc >> 28] : 1; } -void cx23885_wakeup(struct cx23885_tsport *port, +static void cx23885_wakeup(struct cx23885_tsport *port, struct cx23885_dmaqueue *q, u32 count) { struct cx23885_dev *dev = port->dev; struct cx23885_buffer *buf; - int bc; - - for (bc = 0;; bc++) { - if (list_empty(&q->active)) - break; - buf = list_entry(q->active.next, - struct cx23885_buffer, vb.queue); - - /* count comes from the hw and is is 16bit wide -- - * this trick handles wrap-arounds correctly for - * up to 32767 buffers in flight... */ - if ((s16) (count - buf->count) < 0) - break; - v4l2_get_timestamp(&buf->vb.ts); - dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i, - count, buf->count); - buf->vb.state = VIDEOBUF_DONE; - list_del(&buf->vb.queue); - wake_up(&buf->vb.done); - } if (list_empty(&q->active)) - del_timer(&q->timeout); - else - mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT); - if (bc != 1) - printk(KERN_WARNING "%s: %d buffers handled (should be 1)\n", - __func__, bc); + return; + buf = list_entry(q->active.next, + struct cx23885_buffer, queue); + + v4l2_get_timestamp(&buf->vb.v4l2_buf.timestamp); + buf->vb.v4l2_buf.sequence = q->count++; + dprintk(1, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.v4l2_buf.index, + count, q->count); + list_del(&buf->queue); + vb2_buffer_done(&buf->vb, VB2_BUF_STATE_DONE); } int cx23885_sram_channel_setup(struct cx23885_dev *dev, @@ -482,8 +462,8 @@ int cx23885_sram_channel_setup(struct cx23885_dev *dev, lines = 6; BUG_ON(lines < 2); - cx_write(8 + 0, RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC); - cx_write(8 + 4, 8); + cx_write(8 + 0, RISC_JUMP | RISC_CNT_RESET); + cx_write(8 + 4, 12); cx_write(8 + 8, 0); /* write CDT */ @@ -590,7 +570,7 @@ void cx23885_sram_channel_dump(struct cx23885_dev *dev, } static void cx23885_risc_disasm(struct cx23885_tsport *port, - struct btcx_riscmem *risc) + struct cx23885_riscmem *risc) { struct cx23885_dev *dev = port->dev; unsigned int i, j, n; @@ -699,10 +679,6 @@ static int get_resources(struct cx23885_dev *dev) return -EBUSY; } -static void cx23885_timeout(unsigned long data); -int cx23885_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc, - u32 reg, u32 mask, u32 value); - static int cx23885_init_tsport(struct cx23885_dev *dev, struct cx23885_tsport *port, int portno) { @@ -719,11 +695,6 @@ static int cx23885_init_tsport(struct cx23885_dev *dev, port->nr = portno; INIT_LIST_HEAD(&port->mpegq.active); - INIT_LIST_HEAD(&port->mpegq.queued); - port->mpegq.timeout.function = cx23885_timeout; - port->mpegq.timeout.data = (unsigned long)port; - init_timer(&port->mpegq.timeout); - mutex_init(&port->frontends.lock); INIT_LIST_HEAD(&port->frontends.felist); port->frontends.active_fe_id = 0; @@ -776,9 +747,6 @@ static int cx23885_init_tsport(struct cx23885_dev *dev, BUG(); } - cx23885_risc_stopper(dev->pci, &port->mpegq.stopper, - port->reg_dma_ctl, port->dma_ctl_val, 0x00); - return 0; } @@ -1089,11 +1057,18 @@ static void cx23885_dev_unregister(struct cx23885_dev *dev) static __le32 *cx23885_risc_field(__le32 *rp, struct scatterlist *sglist, unsigned int offset, u32 sync_line, unsigned int bpl, unsigned int padding, - unsigned int lines, unsigned int lpi) + unsigned int lines, unsigned int lpi, bool jump) { struct scatterlist *sg; unsigned int line, todo, sol; + + if (jump) { + *(rp++) = cpu_to_le32(RISC_JUMP); + *(rp++) = cpu_to_le32(0); + *(rp++) = cpu_to_le32(0); /* bits 63-32 */ + } + /* sync instruction */ if (sync_line != NO_SYNC_LINE) *(rp++) = cpu_to_le32(RISC_RESYNC | sync_line); @@ -1146,14 +1121,13 @@ static __le32 *cx23885_risc_field(__le32 *rp, struct scatterlist *sglist, return rp; } -int cx23885_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc, +int cx23885_risc_buffer(struct pci_dev *pci, struct cx23885_riscmem *risc, struct scatterlist *sglist, unsigned int top_offset, unsigned int bottom_offset, unsigned int bpl, unsigned int padding, unsigned int lines) { u32 instructions, fields; __le32 *rp; - int rc; fields = 0; if (UNSET != top_offset) @@ -1168,19 +1142,20 @@ int cx23885_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc, /* write and jump need and extra dword */ instructions = fields * (1 + ((bpl + padding) * lines) / PAGE_SIZE + lines); - instructions += 2; - rc = btcx_riscmem_alloc(pci, risc, instructions*12); - if (rc < 0) - return rc; + instructions += 5; + risc->size = instructions * 12; + risc->cpu = pci_alloc_consistent(pci, risc->size, &risc->dma); + if (risc->cpu == NULL) + return -ENOMEM; /* write risc instructions */ rp = risc->cpu; if (UNSET != top_offset) rp = cx23885_risc_field(rp, sglist, top_offset, 0, - bpl, padding, lines, 0); + bpl, padding, lines, 0, true); if (UNSET != bottom_offset) rp = cx23885_risc_field(rp, sglist, bottom_offset, 0x200, - bpl, padding, lines, 0); + bpl, padding, lines, 0, UNSET == top_offset); /* save pointer to jmp instruction address */ risc->jmp = rp; @@ -1189,14 +1164,13 @@ int cx23885_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc, } int cx23885_risc_databuffer(struct pci_dev *pci, - struct btcx_riscmem *risc, + struct cx23885_riscmem *risc, struct scatterlist *sglist, unsigned int bpl, unsigned int lines, unsigned int lpi) { u32 instructions; __le32 *rp; - int rc; /* estimate risc mem: worst case is one write per page border + one write per scan line + syncs + jump (all 2 dwords). Here @@ -1204,16 +1178,17 @@ int cx23885_risc_databuffer(struct pci_dev *pci, than PAGE_SIZE */ /* Jump and write need an extra dword */ instructions = 1 + (bpl * lines) / PAGE_SIZE + lines; - instructions += 1; + instructions += 4; - rc = btcx_riscmem_alloc(pci, risc, instructions*12); - if (rc < 0) - return rc; + risc->size = instructions * 12; + risc->cpu = pci_alloc_consistent(pci, risc->size, &risc->dma); + if (risc->cpu == NULL) + return -ENOMEM; /* write risc instructions */ rp = risc->cpu; rp = cx23885_risc_field(rp, sglist, 0, NO_SYNC_LINE, - bpl, 0, lines, lpi); + bpl, 0, lines, lpi, lpi == 0); /* save pointer to jmp instruction address */ risc->jmp = rp; @@ -1221,14 +1196,13 @@ int cx23885_risc_databuffer(struct pci_dev *pci, return 0; } -int cx23885_risc_vbibuffer(struct pci_dev *pci, struct btcx_riscmem *risc, +int cx23885_risc_vbibuffer(struct pci_dev *pci, struct cx23885_riscmem *risc, struct scatterlist *sglist, unsigned int top_offset, unsigned int bottom_offset, unsigned int bpl, unsigned int padding, unsigned int lines) { u32 instructions, fields; __le32 *rp; - int rc; fields = 0; if (UNSET != top_offset) @@ -1243,22 +1217,23 @@ int cx23885_risc_vbibuffer(struct pci_dev *pci, struct btcx_riscmem *risc, /* write and jump need and extra dword */ instructions = fields * (1 + ((bpl + padding) * lines) / PAGE_SIZE + lines); - instructions += 2; - rc = btcx_riscmem_alloc(pci, risc, instructions*12); - if (rc < 0) - return rc; + instructions += 5; + risc->size = instructions * 12; + risc->cpu = pci_alloc_consistent(pci, risc->size, &risc->dma); + if (risc->cpu == NULL) + return -ENOMEM; /* write risc instructions */ rp = risc->cpu; /* Sync to line 6, so US CC line 21 will appear in line '12' * in the userland vbi payload */ if (UNSET != top_offset) - rp = cx23885_risc_field(rp, sglist, top_offset, 6, - bpl, padding, lines, 0); + rp = cx23885_risc_field(rp, sglist, top_offset, 0, + bpl, padding, lines, 0, true); if (UNSET != bottom_offset) - rp = cx23885_risc_field(rp, sglist, bottom_offset, 0x207, - bpl, padding, lines, 0); + rp = cx23885_risc_field(rp, sglist, bottom_offset, 0x200, + bpl, padding, lines, 0, UNSET == top_offset); @@ -1269,38 +1244,12 @@ int cx23885_risc_vbibuffer(struct pci_dev *pci, struct btcx_riscmem *risc, } -int cx23885_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc, - u32 reg, u32 mask, u32 value) +void cx23885_free_buffer(struct cx23885_dev *dev, struct cx23885_buffer *buf) { - __le32 *rp; - int rc; - - rc = btcx_riscmem_alloc(pci, risc, 4*16); - if (rc < 0) - return rc; - - /* write risc instructions */ - rp = risc->cpu; - *(rp++) = cpu_to_le32(RISC_WRITECR | RISC_IRQ2); - *(rp++) = cpu_to_le32(reg); - *(rp++) = cpu_to_le32(value); - *(rp++) = cpu_to_le32(mask); - *(rp++) = cpu_to_le32(RISC_JUMP); - *(rp++) = cpu_to_le32(risc->dma); - *(rp++) = cpu_to_le32(0); /* bits 63-32 */ - return 0; -} - -void cx23885_free_buffer(struct videobuf_queue *q, struct cx23885_buffer *buf) -{ - struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb); + struct cx23885_riscmem *risc = &buf->risc; BUG_ON(in_interrupt()); - videobuf_waiton(q, &buf->vb, 0, 0); - videobuf_dma_unmap(q->dev, dma); - videobuf_dma_free(dma); - btcx_riscmem_free(to_pci_dev(q->dev), &buf->risc); - buf->vb.state = VIDEOBUF_NEEDS_INIT; + pci_free_consistent(dev->pci, risc->size, risc->cpu, risc->dma); } static void cx23885_tsport_reg_dump(struct cx23885_tsport *port) @@ -1355,7 +1304,7 @@ static void cx23885_tsport_reg_dump(struct cx23885_tsport *port) port->reg_ts_int_msk, cx_read(port->reg_ts_int_msk)); } -static int cx23885_start_dma(struct cx23885_tsport *port, +int cx23885_start_dma(struct cx23885_tsport *port, struct cx23885_dmaqueue *q, struct cx23885_buffer *buf) { @@ -1363,7 +1312,7 @@ static int cx23885_start_dma(struct cx23885_tsport *port, u32 reg; dprintk(1, "%s() w: %d, h: %d, f: %d\n", __func__, - buf->vb.width, buf->vb.height, buf->vb.field); + dev->width, dev->height, dev->field); /* Stop the fifo and risc engine for this port */ cx_clear(port->reg_dma_ctl, port->dma_ctl_val); @@ -1379,7 +1328,7 @@ static int cx23885_start_dma(struct cx23885_tsport *port, } /* write TS length to chip */ - cx_write(port->reg_lngth, buf->vb.width); + cx_write(port->reg_lngth, port->ts_packet_size); if ((!(cx23885_boards[dev->board].portb & CX23885_MPEG_DVB)) && (!(cx23885_boards[dev->board].portc & CX23885_MPEG_DVB))) { @@ -1408,7 +1357,7 @@ static int cx23885_start_dma(struct cx23885_tsport *port, /* NOTE: this is 2 (reserved) for portb, does it matter? */ /* reset counter to zero */ cx_write(port->reg_gpcnt_ctl, 3); - q->count = 1; + q->count = 0; /* Set VIDB pins to input */ if (cx23885_boards[dev->board].portb == CX23885_MPEG_DVB) { @@ -1497,134 +1446,83 @@ static int cx23885_stop_dma(struct cx23885_tsport *port) return 0; } -int cx23885_restart_queue(struct cx23885_tsport *port, - struct cx23885_dmaqueue *q) -{ - struct cx23885_dev *dev = port->dev; - struct cx23885_buffer *buf; - - dprintk(5, "%s()\n", __func__); - if (list_empty(&q->active)) { - struct cx23885_buffer *prev; - prev = NULL; - - dprintk(5, "%s() queue is empty\n", __func__); - - for (;;) { - if (list_empty(&q->queued)) - return 0; - buf = list_entry(q->queued.next, struct cx23885_buffer, - vb.queue); - if (NULL == prev) { - list_move_tail(&buf->vb.queue, &q->active); - cx23885_start_dma(port, q, buf); - buf->vb.state = VIDEOBUF_ACTIVE; - buf->count = q->count++; - mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT); - dprintk(5, "[%p/%d] restart_queue - f/active\n", - buf, buf->vb.i); - - } else if (prev->vb.width == buf->vb.width && - prev->vb.height == buf->vb.height && - prev->fmt == buf->fmt) { - list_move_tail(&buf->vb.queue, &q->active); - buf->vb.state = VIDEOBUF_ACTIVE; - buf->count = q->count++; - prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma); - /* 64 bit bits 63-32 */ - prev->risc.jmp[2] = cpu_to_le32(0); - dprintk(5, "[%p/%d] restart_queue - m/active\n", - buf, buf->vb.i); - } else { - return 0; - } - prev = buf; - } - return 0; - } - - buf = list_entry(q->active.next, struct cx23885_buffer, vb.queue); - dprintk(2, "restart_queue [%p/%d]: restart dma\n", - buf, buf->vb.i); - cx23885_start_dma(port, q, buf); - list_for_each_entry(buf, &q->active, vb.queue) - buf->count = q->count++; - mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT); - return 0; -} - /* ------------------------------------------------------------------ */ -int cx23885_buf_prepare(struct videobuf_queue *q, struct cx23885_tsport *port, - struct cx23885_buffer *buf, enum v4l2_field field) +int cx23885_buf_prepare(struct cx23885_buffer *buf, struct cx23885_tsport *port) { struct cx23885_dev *dev = port->dev; int size = port->ts_packet_size * port->ts_packet_count; + struct sg_table *sgt = vb2_dma_sg_plane_desc(&buf->vb, 0); int rc; dprintk(1, "%s: %p\n", __func__, buf); - if (0 != buf->vb.baddr && buf->vb.bsize < size) + if (vb2_plane_size(&buf->vb, 0) < size) return -EINVAL; + vb2_set_plane_payload(&buf->vb, 0, size); - if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { - buf->vb.width = port->ts_packet_size; - buf->vb.height = port->ts_packet_count; - buf->vb.size = size; - buf->vb.field = field /*V4L2_FIELD_TOP*/; - - rc = videobuf_iolock(q, &buf->vb, NULL); - if (0 != rc) - goto fail; - cx23885_risc_databuffer(dev->pci, &buf->risc, - videobuf_to_dma(&buf->vb)->sglist, - buf->vb.width, buf->vb.height, 0); - } - buf->vb.state = VIDEOBUF_PREPARED; - return 0; + rc = dma_map_sg(&dev->pci->dev, sgt->sgl, sgt->nents, DMA_FROM_DEVICE); + if (!rc) + return -EIO; - fail: - cx23885_free_buffer(q, buf); - return rc; + cx23885_risc_databuffer(dev->pci, &buf->risc, + sgt->sgl, + port->ts_packet_size, port->ts_packet_count, 0); + return 0; } +/* + * The risc program for each buffer works as follows: it starts with a simple + * 'JUMP to addr + 12', which is effectively a NOP. Then the code to DMA the + * buffer follows and at the end we have a JUMP back to the start + 12 (skipping + * the initial JUMP). + * + * This is the risc program of the first buffer to be queued if the active list + * is empty and it just keeps DMAing this buffer without generating any + * interrupts. + * + * If a new buffer is added then the initial JUMP in the code for that buffer + * will generate an interrupt which signals that the previous buffer has been + * DMAed successfully and that it can be returned to userspace. + * + * It also sets the final jump of the previous buffer to the start of the new + * buffer, thus chaining the new buffer into the DMA chain. This is a single + * atomic u32 write, so there is no race condition. + * + * The end-result of all this that you only get an interrupt when a buffer + * is ready, so the control flow is very easy. + */ void cx23885_buf_queue(struct cx23885_tsport *port, struct cx23885_buffer *buf) { struct cx23885_buffer *prev; struct cx23885_dev *dev = port->dev; struct cx23885_dmaqueue *cx88q = &port->mpegq; + unsigned long flags; - /* add jump to stopper */ - buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC); - buf->risc.jmp[1] = cpu_to_le32(cx88q->stopper.dma); + buf->risc.cpu[1] = cpu_to_le32(buf->risc.dma + 12); + buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_CNT_INC); + buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma + 12); buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */ + spin_lock_irqsave(&dev->slock, flags); if (list_empty(&cx88q->active)) { - dprintk(1, "queue is empty - first active\n"); - list_add_tail(&buf->vb.queue, &cx88q->active); - cx23885_start_dma(port, cx88q, buf); - buf->vb.state = VIDEOBUF_ACTIVE; - buf->count = cx88q->count++; - mod_timer(&cx88q->timeout, jiffies + BUFFER_TIMEOUT); + list_add_tail(&buf->queue, &cx88q->active); dprintk(1, "[%p/%d] %s - first active\n", - buf, buf->vb.i, __func__); + buf, buf->vb.v4l2_buf.index, __func__); } else { - dprintk(1, "queue is not empty - append to active\n"); + buf->risc.cpu[0] |= cpu_to_le32(RISC_IRQ1); prev = list_entry(cx88q->active.prev, struct cx23885_buffer, - vb.queue); - list_add_tail(&buf->vb.queue, &cx88q->active); - buf->vb.state = VIDEOBUF_ACTIVE; - buf->count = cx88q->count++; + queue); + list_add_tail(&buf->queue, &cx88q->active); prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma); - prev->risc.jmp[2] = cpu_to_le32(0); /* 64 bit bits 63-32 */ dprintk(1, "[%p/%d] %s - append to active\n", - buf, buf->vb.i, __func__); + buf, buf->vb.v4l2_buf.index, __func__); } + spin_unlock_irqrestore(&dev->slock, flags); } /* ----------------------------------------------------------- */ -static void do_cancel_buffers(struct cx23885_tsport *port, char *reason, - int restart) +static void do_cancel_buffers(struct cx23885_tsport *port, char *reason) { struct cx23885_dev *dev = port->dev; struct cx23885_dmaqueue *q = &port->mpegq; @@ -1634,16 +1532,11 @@ static void do_cancel_buffers(struct cx23885_tsport *port, char *reason, spin_lock_irqsave(&port->slock, flags); while (!list_empty(&q->active)) { buf = list_entry(q->active.next, struct cx23885_buffer, - vb.queue); - list_del(&buf->vb.queue); - buf->vb.state = VIDEOBUF_ERROR; - wake_up(&buf->vb.done); + queue); + list_del(&buf->queue); + vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); dprintk(1, "[%p/%d] %s - dma=0x%08lx\n", - buf, buf->vb.i, reason, (unsigned long)buf->risc.dma); - } - if (restart) { - dprintk(1, "restarting queue\n"); - cx23885_restart_queue(port, q); + buf, buf->vb.v4l2_buf.index, reason, (unsigned long)buf->risc.dma); } spin_unlock_irqrestore(&port->slock, flags); } @@ -1651,27 +1544,10 @@ static void do_cancel_buffers(struct cx23885_tsport *port, char *reason, void cx23885_cancel_buffers(struct cx23885_tsport *port) { struct cx23885_dev *dev = port->dev; - struct cx23885_dmaqueue *q = &port->mpegq; - - dprintk(1, "%s()\n", __func__); - del_timer_sync(&q->timeout); - cx23885_stop_dma(port); - do_cancel_buffers(port, "cancel", 0); -} - -static void cx23885_timeout(unsigned long data) -{ - struct cx23885_tsport *port = (struct cx23885_tsport *)data; - struct cx23885_dev *dev = port->dev; dprintk(1, "%s()\n", __func__); - - if (debug > 5) - cx23885_sram_channel_dump(dev, - &dev->sram_channels[port->sram_chno]); - cx23885_stop_dma(port); - do_cancel_buffers(port, "timeout", 1); + do_cancel_buffers(port, "cancel"); } int cx23885_irq_417(struct cx23885_dev *dev, u32 status) @@ -1721,11 +1597,6 @@ int cx23885_irq_417(struct cx23885_dev *dev, u32 status) spin_lock(&port->slock); cx23885_wakeup(port, &port->mpegq, count); spin_unlock(&port->slock); - } else if (status & VID_B_MSK_RISCI2) { - dprintk(7, " VID_B_MSK_RISCI2\n"); - spin_lock(&port->slock); - cx23885_restart_queue(port, &port->mpegq); - spin_unlock(&port->slock); } if (status) { cx_write(port->reg_ts_int_stat, status); @@ -1777,14 +1648,6 @@ static int cx23885_irq_ts(struct cx23885_tsport *port, u32 status) cx23885_wakeup(port, &port->mpegq, count); spin_unlock(&port->slock); - } else if (status & VID_BC_MSK_RISCI2) { - - dprintk(7, " (RISCI2 0x%08x)\n", VID_BC_MSK_RISCI2); - - spin_lock(&port->slock); - cx23885_restart_queue(port, &port->mpegq); - spin_unlock(&port->slock); - } if (status) { cx_write(port->reg_ts_int_stat, status); @@ -2087,6 +1950,7 @@ static int cx23885_initdev(struct pci_dev *pci_dev, const struct pci_device_id *pci_id) { struct cx23885_dev *dev; + struct v4l2_ctrl_handler *hdl; int err; dev = kzalloc(sizeof(*dev), GFP_KERNEL); @@ -2097,6 +1961,14 @@ static int cx23885_initdev(struct pci_dev *pci_dev, if (err < 0) goto fail_free; + hdl = &dev->ctrl_handler; + v4l2_ctrl_handler_init(hdl, 6); + if (hdl->error) { + err = hdl->error; + goto fail_ctrl; + } + dev->v4l2_dev.ctrl_handler = hdl; + /* Prepare to handle notifications from subdevices */ cx23885_v4l2_dev_notify_init(dev); @@ -2104,12 +1976,12 @@ static int cx23885_initdev(struct pci_dev *pci_dev, dev->pci = pci_dev; if (pci_enable_device(pci_dev)) { err = -EIO; - goto fail_unreg; + goto fail_ctrl; } if (cx23885_dev_setup(dev) < 0) { err = -EINVAL; - goto fail_unreg; + goto fail_ctrl; } /* print pci info */ @@ -2157,7 +2029,8 @@ static int cx23885_initdev(struct pci_dev *pci_dev, fail_irq: cx23885_dev_unregister(dev); -fail_unreg: +fail_ctrl: + v4l2_ctrl_handler_free(hdl); v4l2_device_unregister(&dev->v4l2_dev); fail_free: kfree(dev); @@ -2180,6 +2053,7 @@ static void cx23885_finidev(struct pci_dev *pci_dev) free_irq(pci_dev->irq, dev); cx23885_dev_unregister(dev); + v4l2_ctrl_handler_free(&dev->ctrl_handler); v4l2_device_unregister(v4l2_dev); kfree(dev); } |