diff options
| author | Dan Carpenter <error27@gmail.com> | 2010-11-24 08:36:57 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-07-28 00:52:18 +0400 |
| commit | 061d55eb450102408289599ae79b92322d6126e1 (patch) | |
| tree | c31b0088a8576de0e6eed098176dc81a7a079432 /drivers/media/video/saa7164 | |
| parent | 050bf0faa833028f30ed3ad6a8fc5e51994dabfe (diff) | |
| download | linux-061d55eb450102408289599ae79b92322d6126e1.tar.xz | |
[media] saa7164: poll mask set incorrectly
list_first_entry() always returns non-null here. I think the intent was
to test whether there were any entries in the used list.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Cc: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/saa7164')
| -rw-r--r-- | drivers/media/video/saa7164/saa7164-encoder.c | 6 | ||||
| -rw-r--r-- | drivers/media/video/saa7164/saa7164-vbi.c | 6 |
2 files changed, 2 insertions, 10 deletions
diff --git a/drivers/media/video/saa7164/saa7164-encoder.c b/drivers/media/video/saa7164/saa7164-encoder.c index 400364569c8d..2fd38a01887f 100644 --- a/drivers/media/video/saa7164/saa7164-encoder.c +++ b/drivers/media/video/saa7164/saa7164-encoder.c @@ -1246,7 +1246,6 @@ static unsigned int fops_poll(struct file *file, poll_table *wait) struct saa7164_encoder_fh *fh = (struct saa7164_encoder_fh *)file->private_data; struct saa7164_port *port = fh->port; - struct saa7164_user_buffer *ubuf; unsigned int mask = 0; port->last_poll_msecs_diff = port->last_poll_msecs; @@ -1278,10 +1277,7 @@ static unsigned int fops_poll(struct file *file, poll_table *wait) } /* Pull the first buffer from the used list */ - ubuf = list_first_entry(&port->list_buf_used.list, - struct saa7164_user_buffer, list); - - if (ubuf) + if (!list_empty(&port->list_buf_used.list)) mask |= POLLIN | POLLRDNORM; return mask; diff --git a/drivers/media/video/saa7164/saa7164-vbi.c b/drivers/media/video/saa7164/saa7164-vbi.c index bc1fcedba874..e2e034158718 100644 --- a/drivers/media/video/saa7164/saa7164-vbi.c +++ b/drivers/media/video/saa7164/saa7164-vbi.c @@ -1192,7 +1192,6 @@ static unsigned int fops_poll(struct file *file, poll_table *wait) { struct saa7164_vbi_fh *fh = (struct saa7164_vbi_fh *)file->private_data; struct saa7164_port *port = fh->port; - struct saa7164_user_buffer *ubuf; unsigned int mask = 0; port->last_poll_msecs_diff = port->last_poll_msecs; @@ -1224,10 +1223,7 @@ static unsigned int fops_poll(struct file *file, poll_table *wait) } /* Pull the first buffer from the used list */ - ubuf = list_first_entry(&port->list_buf_used.list, - struct saa7164_user_buffer, list); - - if (ubuf) + if (!list_empty(&port->list_buf_used.list)) mask |= POLLIN | POLLRDNORM; return mask; |