hi,
when checking the -Wextra signedness warnings issued by gcc 4.1
I came across this one:
drivers/media/video/vivi.c:1001: warning: comparison of unsigned expression < 0 is always false
Since videobuf_reqbufs() returns negative values on errors the current
code does no real error checking since gcc removes the comparison.
This patch fixes this issue by making ret a normal, signed integer.
Signed-off-by: Eric Sesterhenn <[email protected]>
--- linux-2.6.18-rc4/drivers/media/video/vivi.c.orig 2006-08-19 18:13:45.000000000 +0200
+++ linux-2.6.18-rc4/drivers/media/video/vivi.c 2006-08-19 18:14:16.000000000 +0200
@@ -992,7 +992,8 @@ static int vidiocgmbuf (struct file *fil
struct vivi_fh *fh=priv;
struct videobuf_queue *q=&fh->vb_vidq;
struct v4l2_requestbuffers req;
- unsigned int i, ret;
+ unsigned int i;
+ int ret;
req.type = q->type;
req.count = 8;
-
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