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| author |   Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-08-22 11:16:42 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-08-26 14:11:10 -0300 |
| commit | 95c520690f5fafb2cda2ec17f8c76ab3422b0174 (patch) | |
| tree | 0dec0f5683f21100b61b19a141512ebe0bac3aea /drivers/media/v4l2-core/v4l2-ioctl.c | |
| parent | media: use the BIT() macro (diff) | |
| download | linux-dev-95c520690f5fafb2cda2ec17f8c76ab3422b0174.tar.xz linux-dev-95c520690f5fafb2cda2ec17f8c76ab3422b0174.zip | |
media: don't do a 31 bit shift on a signed int
On 32-bits archs, a signed integer has 31 bits plus on extra
bit for signal. Due to that, touching the 32th bit with something
like:
int bar = 1 << 31;
has an undefined behavior in C on 32 bit architectures, as it
touches the signal bit. This is warned by cppcheck.
Instead, force the numbers to be unsigned, in order to solve this
issue.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media/v4l2-core/v4l2-ioctl.c')
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-ioctl.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index 39f10621c91b..51b912743f0f 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -1388,7 +1388,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) (char)((fmt->pixelformat >> 8) & 0x7f), (char)((fmt->pixelformat >> 16) & 0x7f), (char)((fmt->pixelformat >> 24) & 0x7f), - (fmt->pixelformat & (1 << 31)) ? "-BE" : ""); + (fmt->pixelformat & (1UL << 31)) ? "-BE" : ""); break; } } |