[PATCH] ASoC: mchp-spdifrx: Fix uninitialized use of mr in mchp_spdifrx_hw_params()
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 --- 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 526dd3a17471..eb0c0ef4541e 100644 --- a/sound/soc/atmel/mchp-spdifrx.c +++ b/sound/soc/atmel/mchp-spdifrx.c @@ -429,7 +429,7 @@ 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",
--- base-commit: 1d78f19d90d1932c83d8c96c6f86fbb06c05e29a change-id: 20230202-mchp-spdifrx-fix-uninit-mr-80528f2024c9
Best regards,
On 02.02.2023 18:34, Nathan Chancellor wrote:
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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
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 526dd3a17471..eb0c0ef4541e 100644 --- a/sound/soc/atmel/mchp-spdifrx.c +++ b/sound/soc/atmel/mchp-spdifrx.c @@ -429,7 +429,7 @@ 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",
base-commit: 1d78f19d90d1932c83d8c96c6f86fbb06c05e29a change-id: 20230202-mchp-spdifrx-fix-uninit-mr-80528f2024c9
Best regards,
Nathan Chancellor nathan@kernel.org
On Thu, 02 Feb 2023 09:34:19 -0700, Nathan Chancellor wrote:
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.
[...]
Applied to
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
Thanks!
[1/1] ASoC: mchp-spdifrx: Fix uninitialized use of mr in mchp_spdifrx_hw_params() commit: 218674a45930c700486d27b765bf2f1b43f8cbf7
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.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
participants (3)
-
Claudiu.Beznea＠microchip.com -
Mark Brown -
Nathan Chancellor