From: Nathan Chancellor nathan@kernel.org
[ Upstream commit 218674a45930c700486d27b765bf2f1b43f8cbf7 ]
Clang warns:
../sound/soc/atmel/mchp-spdifrx.c:455:3: error: variable 'mr' is uninitialized when used here [-Werror,-Wuninitialized] mr |= SPDIFRX_MR_ENDIAN_BIG; ^~ ../sound/soc/atmel/mchp-spdifrx.c:432:8: note: initialize the variable 'mr' to silence this warning u32 mr; ^ = 0 1 error generated.
Zero initialize mr so that these bitwise OR and assignment operation works unconditionally.
Fixes: fa09fa60385a ("ASoC: mchp-spdifrx: fix controls which rely on rsr register") Link: https://github.com/ClangBuiltLinux/linux/issues/1797 Signed-off-by: Nathan Chancellor nathan@kernel.org Reviewed-by: Claudiu Beznea claudiu.beznea@microchip.com Link: https://lore.kernel.org/r/20230202-mchp-spdifrx-fix-uninit-mr-v1-1-629a045d7... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/atmel/mchp-spdifrx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/atmel/mchp-spdifrx.c b/sound/soc/atmel/mchp-spdifrx.c index 03b7037239b85..39a3c2a33bdbb 100644 --- a/sound/soc/atmel/mchp-spdifrx.c +++ b/sound/soc/atmel/mchp-spdifrx.c @@ -362,7 +362,7 @@ static int mchp_spdifrx_hw_params(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct mchp_spdifrx_dev *dev = snd_soc_dai_get_drvdata(dai); - u32 mr; + u32 mr = 0; int ret;
dev_dbg(dev->dev, "%s() rate=%u format=%#x width=%u channels=%u\n",