diff options
| 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/platform/s5p-mfc/s5p_mfc_opr_v5.c | |
| parent | cce8ccca80d8388982133192d0a6d9dc2e8ed712 (diff) | |
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/platform/s5p-mfc/s5p_mfc_opr_v5.c')
| -rw-r--r-- | drivers/media/platform/s5p-mfc/s5p_mfc_opr_v5.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v5.c b/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v5.c index f76a07400966..49503c20d320 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v5.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v5.c @@ -711,7 +711,7 @@ static int s5p_mfc_set_enc_params(struct s5p_mfc_ctx *ctx) reg = mfc_read(dev, S5P_FIMV_ENC_PADDING_CTRL); if (p->pad) { /** enable */ - reg |= (1 << 31); + reg |= (1UL << 31); /** cr value */ reg &= ~(0xFF << 16); reg |= (p->pad_cr << 16); @@ -955,7 +955,7 @@ static int s5p_mfc_set_enc_params_mpeg4(struct s5p_mfc_ctx *ctx) S5P_FIMV_ENC_RC_FRAME_RATE); shm = s5p_mfc_read_info_v5(ctx, RC_VOP_TIMING); shm &= ~(0xFFFFFFFF); - shm |= (1 << 31); + shm |= (1UL << 31); shm |= ((p->rc_framerate_num & 0x7FFF) << 16); shm |= (p->rc_framerate_denom & 0xFFFF); s5p_mfc_write_info_v5(ctx, shm, RC_VOP_TIMING); |