[PATCH] ASoC: tegra: Fix MBDRC bypass mode check
MBDRC supports different modes of operation. There is no configuration required for bypass mode. The hw_params() call does not filter bypass mode correctly and it leads to following Smatch static checker warning:
sound/soc/tegra/tegra210_mbdrc.c:778 tegra210_mbdrc_hw_params() warn: bitwise AND condition is false here
Fix this condition by using proper mode mask and just return for bypass mode.
Reported-by: Dan Carpenter dan.carpenter@oracle.com Fixes: 7358a803c778 ("ASoC: tegra: Add Tegra210 based OPE driver") Signed-off-by: Sameer Pujar spujar@nvidia.com --- sound/soc/tegra/tegra210_mbdrc.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/sound/soc/tegra/tegra210_mbdrc.c b/sound/soc/tegra/tegra210_mbdrc.c index 7d9da33..d786daa 100644 --- a/sound/soc/tegra/tegra210_mbdrc.c +++ b/sound/soc/tegra/tegra210_mbdrc.c @@ -775,7 +775,9 @@ int tegra210_mbdrc_hw_params(struct snd_soc_component *cmpnt)
regmap_read(ope->mbdrc_regmap, TEGRA210_MBDRC_CFG, &val);
- if (val & TEGRA210_MBDRC_CFG_MBDRC_MODE_BYPASS) + val &= TEGRA210_MBDRC_CFG_MBDRC_MODE_MASK; + + if (val == TEGRA210_MBDRC_CFG_MBDRC_MODE_BYPASS) return 0;
for (i = 0; i < MBDRC_NUM_BAND; i++) {
On Wed, 15 Jun 2022 10:08:34 +0530, Sameer Pujar wrote:
MBDRC supports different modes of operation. There is no configuration required for bypass mode. The hw_params() call does not filter bypass mode correctly and it leads to following Smatch static checker warning:
sound/soc/tegra/tegra210_mbdrc.c:778 tegra210_mbdrc_hw_params() warn: bitwise AND condition is false here
[...]
Applied to
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
Thanks!
[1/1] ASoC: tegra: Fix MBDRC bypass mode check commit: 4edf738d4c7989c315e37d4d61e34c94557b6ed2
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
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Thanks, Mark
participants (2)
-
Mark Brown -
Sameer Pujar