[alsa-devel] [PATCH] ASoC: Intel: bytcr_rt565: fix missing assignment to ret_val
From: Colin Ian King colin.king@canonical.com
Currently, the check that ret_val is not -ENOENT is always true and the quirk bit BYT_RY5651_MCLK_EN is never being cleared because ret_val is always zero at this point from a previous assignment earlier on. I believe that ret_val should actually be assigned to the return from devm_clk_get() as this can return -ENOENT (from a deeper call to clk_get_sys) and that was the original intention to check this.
Detected by CoverityScan, CID#1460228 ("Logically dead code")
Fixes: 02c0a3b3047f ("ASoC: Intel: bytcr_rt5651: add MCLK, quirks and cleanups") Signed-off-by: Colin Ian King colin.king@canonical.com --- sound/soc/intel/boards/bytcr_rt5651.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/sound/soc/intel/boards/bytcr_rt5651.c b/sound/soc/intel/boards/bytcr_rt5651.c index 3c7d93520c52..469e2695d121 100644 --- a/sound/soc/intel/boards/bytcr_rt5651.c +++ b/sound/soc/intel/boards/bytcr_rt5651.c @@ -856,9 +856,10 @@ static int snd_byt_rt5651_mc_probe(struct platform_device *pdev) if (byt_rt5651_quirk & BYT_RT5651_MCLK_EN) { priv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3"); if (IS_ERR(priv->mclk)) { + ret_val = PTR_ERR(priv->mclk); dev_err(&pdev->dev, - "Failed to get MCLK from pmc_plt_clk_3: %ld\n", - PTR_ERR(priv->mclk)); + "Failed to get MCLK from pmc_plt_clk_3: %d\n", + ret_val); /* * Fall back to bit clock usage for -ENOENT (clock not * available likely due to missing dependencies), bail
On 5/2/18 9:29 AM, Colin King wrote:
From: Colin Ian King colin.king@canonical.com
Currently, the check that ret_val is not -ENOENT is always true and the quirk bit BYT_RY5651_MCLK_EN is never being cleared because ret_val is always zero at this point from a previous assignment earlier on. I believe that ret_val should actually be assigned to the return from devm_clk_get() as this can return -ENOENT (from a deeper call to clk_get_sys) and that was the original intention to check this.
Detected by CoverityScan, CID#1460228 ("Logically dead code")
nice catch, the fix is consistent with what is done for rt5640.
Acked-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com
Fixes: 02c0a3b3047f ("ASoC: Intel: bytcr_rt5651: add MCLK, quirks and cleanups") Signed-off-by: Colin Ian King colin.king@canonical.com
sound/soc/intel/boards/bytcr_rt5651.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/sound/soc/intel/boards/bytcr_rt5651.c b/sound/soc/intel/boards/bytcr_rt5651.c index 3c7d93520c52..469e2695d121 100644 --- a/sound/soc/intel/boards/bytcr_rt5651.c +++ b/sound/soc/intel/boards/bytcr_rt5651.c @@ -856,9 +856,10 @@ static int snd_byt_rt5651_mc_probe(struct platform_device *pdev) if (byt_rt5651_quirk & BYT_RT5651_MCLK_EN) { priv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3"); if (IS_ERR(priv->mclk)) {
ret_val = PTR_ERR(priv->mclk); dev_err(&pdev->dev,
"Failed to get MCLK from pmc_plt_clk_3: %ld\n",PTR_ERR(priv->mclk));
"Failed to get MCLK from pmc_plt_clk_3: %d\n",ret_val); /* * Fall back to bit clock usage for -ENOENT (clock not * available likely due to missing dependencies), bail
The patch
ASoC: Intel: bytcr_rt565: fix missing assignment to ret_val
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
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
From de5afce2a22ef7f92e9e8583a3bdbc10e448cddf Mon Sep 17 00:00:00 2001
From: Colin Ian King colin.king@canonical.com Date: Wed, 2 May 2018 15:29:45 +0100 Subject: [PATCH] ASoC: Intel: bytcr_rt565: fix missing assignment to ret_val
Currently, the check that ret_val is not -ENOENT is always true and the quirk bit BYT_RY5651_MCLK_EN is never being cleared because ret_val is always zero at this point from a previous assignment earlier on. I believe that ret_val should actually be assigned to the return from devm_clk_get() as this can return -ENOENT (from a deeper call to clk_get_sys) and that was the original intention to check this.
Detected by CoverityScan, CID#1460228 ("Logically dead code")
Fixes: 02c0a3b3047f ("ASoC: Intel: bytcr_rt5651: add MCLK, quirks and cleanups") Signed-off-by: Colin Ian King colin.king@canonical.com Acked-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/intel/boards/bytcr_rt5651.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/sound/soc/intel/boards/bytcr_rt5651.c b/sound/soc/intel/boards/bytcr_rt5651.c index 1b1997f1d60c..bf59c7caf1d9 100644 --- a/sound/soc/intel/boards/bytcr_rt5651.c +++ b/sound/soc/intel/boards/bytcr_rt5651.c @@ -856,9 +856,10 @@ static int snd_byt_rt5651_mc_probe(struct platform_device *pdev) if (byt_rt5651_quirk & BYT_RT5651_MCLK_EN) { priv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3"); if (IS_ERR(priv->mclk)) { + ret_val = PTR_ERR(priv->mclk); dev_err(&pdev->dev, - "Failed to get MCLK from pmc_plt_clk_3: %ld\n", - PTR_ERR(priv->mclk)); + "Failed to get MCLK from pmc_plt_clk_3: %d\n", + ret_val); /* * Fall back to bit clock usage for -ENOENT (clock not * available likely due to missing dependencies), bail
participants (3)
-
Colin King -
Mark Brown -
Pierre-Louis Bossart