diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2010-07-19 19:39:34 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-08-02 21:42:57 +0200 |
| commit | 37b58bfe4bb3df303aa9d7f1ccdbfc477b42c5e2 (patch) | |
| tree | f82417c863f6e4268bc56a12bffd46ab4739adba /drivers/media/video/ivtv/ivtvfb.c | |
| parent | V4L/DVB: IR/lirc: use memdup_user instead of copy_from_user (diff) | |
| download | linux-37b58bfe4bb3df303aa9d7f1ccdbfc477b42c5e2.tar.xz linux-37b58bfe4bb3df303aa9d7f1ccdbfc477b42c5e2.zip | |
V4L/DVB: VIDEO: ivtvfb, remove unneeded NULL test
Stanse found that in ivtvfb_callback_cleanup and ivtvfb_callback_init
there are unneeded tests for itv being NULL. But itv is initialized
as container_of with non-zero offset in those functions, so it is
never NULL (even if v4l2_dev is). This was found because itv is
dereferenced earlier than the test.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reviewed-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/ivtv/ivtvfb.c')
| -rw-r--r-- | drivers/media/video/ivtv/ivtvfb.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/media/video/ivtv/ivtvfb.c b/drivers/media/video/ivtv/ivtvfb.c index 2c2d862ca89f..be03a712731c 100644 --- a/drivers/media/video/ivtv/ivtvfb.c +++ b/drivers/media/video/ivtv/ivtvfb.c @@ -1239,7 +1239,7 @@ static int __init ivtvfb_callback_init(struct device *dev, void *p) struct v4l2_device *v4l2_dev = dev_get_drvdata(dev); struct ivtv *itv = container_of(v4l2_dev, struct ivtv, v4l2_dev); - if (itv && (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) { + if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT) { if (ivtvfb_init_card(itv) == 0) { IVTVFB_INFO("Framebuffer registered on %s\n", itv->v4l2_dev.name); @@ -1255,7 +1255,7 @@ static int ivtvfb_callback_cleanup(struct device *dev, void *p) struct ivtv *itv = container_of(v4l2_dev, struct ivtv, v4l2_dev); struct osd_info *oi = itv->osd_info; - if (itv && (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) { + if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT) { if (unregister_framebuffer(&itv->osd_info->ivtvfb_info)) { IVTVFB_WARN("Framebuffer %d is in use, cannot unload\n", itv->instance); |