diff options
Diffstat (limited to 'drivers/media/dvb-core/dvb_ca_en50221.c')
| -rw-r--r-- | drivers/media/dvb-core/dvb_ca_en50221.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/media/dvb-core/dvb_ca_en50221.c b/drivers/media/dvb-core/dvb_ca_en50221.c index d48b61eb01f4..204d0f6c678d 100644 --- a/drivers/media/dvb-core/dvb_ca_en50221.c +++ b/drivers/media/dvb-core/dvb_ca_en50221.c @@ -37,8 +37,8 @@ #include <linux/sched/signal.h> #include <linux/kthread.h> -#include "dvb_ca_en50221.h" -#include "dvb_ringbuffer.h" +#include <media/dvb_ca_en50221.h> +#include <media/dvb_ringbuffer.h> static int dvb_ca_en50221_debug; @@ -786,7 +786,7 @@ exit: * @ca: CA instance. * @slot: Slot to write to. * @buf: The data in this buffer is treated as a complete link-level packet to - * be written. + * be written. * @bytes_write: Size of ebuf. * * return: Number of bytes written, or < 0 on error. @@ -1473,6 +1473,9 @@ static ssize_t dvb_ca_en50221_io_write(struct file *file, return -EFAULT; buf += 2; count -= 2; + + if (slot >= ca->slot_count) + return -EINVAL; sl = &ca->slot_info[slot]; /* check if the slot is actually running */ @@ -1782,18 +1785,18 @@ static int dvb_ca_en50221_io_release(struct inode *inode, struct file *file) * * return: Standard poll mask. */ -static unsigned int dvb_ca_en50221_io_poll(struct file *file, poll_table *wait) +static __poll_t dvb_ca_en50221_io_poll(struct file *file, poll_table *wait) { struct dvb_device *dvbdev = file->private_data; struct dvb_ca_private *ca = dvbdev->priv; - unsigned int mask = 0; + __poll_t mask = 0; int slot; int result = 0; dprintk("%s\n", __func__); if (dvb_ca_en50221_io_read_condition(ca, &result, &slot) == 1) - mask |= POLLIN; + mask |= EPOLLIN; /* if there is something, return now */ if (mask) @@ -1803,7 +1806,7 @@ static unsigned int dvb_ca_en50221_io_poll(struct file *file, poll_table *wait) poll_wait(file, &ca->wait_queue, wait); if (dvb_ca_en50221_io_read_condition(ca, &result, &slot) == 1) - mask |= POLLIN; + mask |= EPOLLIN; return mask; } |