From: Jiri Slaby Date: Mon, 19 Jul 2010 17:39:34 +0000 (-0300) Subject: V4L/DVB: VIDEO: ivtvfb, remove unneeded NULL test X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=37b58bfe4bb3df303aa9d7f1ccdbfc477b42c5e2;p=deliverable%2Flinux.git 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 Reviewed-by: Andy Walls Signed-off-by: Mauro Carvalho Chehab --- 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);