diff options
Diffstat (limited to 'drivers/pnp')
| -rw-r--r-- | drivers/pnp/isapnp/proc.c | 22 | ||||
| -rw-r--r-- | drivers/pnp/manager.c | 14 |
2 files changed, 10 insertions, 26 deletions
diff --git a/drivers/pnp/isapnp/proc.c b/drivers/pnp/isapnp/proc.c index 2365ef37ae24..5edee645d890 100644 --- a/drivers/pnp/isapnp/proc.c +++ b/drivers/pnp/isapnp/proc.c @@ -29,27 +29,7 @@ static struct proc_dir_entry *isapnp_proc_bus_dir = NULL; static loff_t isapnp_proc_bus_lseek(struct file *file, loff_t off, int whence) { - loff_t new = -1; - struct inode *inode = file_inode(file); - - mutex_lock(&inode->i_mutex); - switch (whence) { - case 0: - new = off; - break; - case 1: - new = file->f_pos + off; - break; - case 2: - new = 256 + off; - break; - } - if (new < 0 || new > 256) - new = -EINVAL; - else - file->f_pos = new; - mutex_unlock(&inode->i_mutex); - return new; + return fixed_size_llseek(file, off, whence, 256); } static ssize_t isapnp_proc_bus_read(struct file *file, char __user * buf, diff --git a/drivers/pnp/manager.c b/drivers/pnp/manager.c index 95cebf0185de..9357aa779048 100644 --- a/drivers/pnp/manager.c +++ b/drivers/pnp/manager.c @@ -211,6 +211,12 @@ static int pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx) res->start = -1; res->end = -1; + if (!rule->map) { + res->flags |= IORESOURCE_DISABLED; + pnp_dbg(&dev->dev, " dma %d disabled\n", idx); + goto __add; + } + for (i = 0; i < 8; i++) { if (rule->map & (1 << xtab[i])) { res->start = res->end = xtab[i]; @@ -218,11 +224,9 @@ static int pnp_assign_dma(struct pnp_dev *dev, struct pnp_dma *rule, int idx) goto __add; } } -#ifdef MAX_DMA_CHANNELS - res->start = res->end = MAX_DMA_CHANNELS; -#endif - res->flags |= IORESOURCE_DISABLED; - pnp_dbg(&dev->dev, " disable dma %d\n", idx); + + pnp_dbg(&dev->dev, " couldn't assign dma %d\n", idx); + return -EBUSY; __add: pnp_add_dma_resource(dev, res->start, res->flags); |