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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2013-02-07 07:05:43 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-02-08 17:30:53 -0200 |
| commit | 82f0efbcd3c4e6bf7cdfeed5c901b812e6d30f92 (patch) | |
| tree | f34422ddad3328fd8dc8f8c1827841c4e5817623 /drivers/media/usb/tm6000 | |
| parent | bf5bbed15c41228ea1abbb8d3931050922bfc37f (diff) | |
| download | linux-82f0efbcd3c4e6bf7cdfeed5c901b812e6d30f92.tar.gz linux-82f0efbcd3c4e6bf7cdfeed5c901b812e6d30f92.tar.bz2 linux-82f0efbcd3c4e6bf7cdfeed5c901b812e6d30f92.zip | |
[media] tm6000: fix an uninitialized variable
tm6000_poll could use an uninitialized buf pointer. Move the buf-handling
code inside the 'if' that initializes the buf pointer.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/usb/tm6000')
| -rw-r--r-- | drivers/media/usb/tm6000/tm6000-video.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/media/usb/tm6000/tm6000-video.c b/drivers/media/usb/tm6000/tm6000-video.c index eab23413a909..1a6857929c15 100644 --- a/drivers/media/usb/tm6000/tm6000-video.c +++ b/drivers/media/usb/tm6000/tm6000-video.c @@ -1455,14 +1455,14 @@ __tm6000_poll(struct file *file, struct poll_table_struct *wait) if (list_empty(&fh->vb_vidq.stream)) return res | POLLERR; buf = list_entry(fh->vb_vidq.stream.next, struct tm6000_buffer, vb.stream); + poll_wait(file, &buf->vb.done, wait); + if (buf->vb.state == VIDEOBUF_DONE || + buf->vb.state == VIDEOBUF_ERROR) + return res | POLLIN | POLLRDNORM; } else if (req_events & (POLLIN | POLLRDNORM)) { /* read() capture */ return res | videobuf_poll_stream(file, &fh->vb_vidq, wait); } - poll_wait(file, &buf->vb.done, wait); - if (buf->vb.state == VIDEOBUF_DONE || - buf->vb.state == VIDEOBUF_ERROR) - return res | POLLIN | POLLRDNORM; return res; } |