diff options
| author | Jia-Ju Bai <baijiaju1990@gmail.com> | 2018-04-09 18:47:37 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-04-16 11:53:40 +0100 |
| commit | 7a3a63238fc1d93aa998671de56af2202d776010 (patch) | |
| tree | 72e8cbf1e11754c009eb169bc8876ff0dadab95d | |
| parent | 270e1ad6d1f76dfebea19a277a65cefd185f85b0 (diff) | |
ASoC: intel: bytcr_rt5640: Replace GFP_ATOMIC with GFP_KERNEL in snd_byt_rt5640_mc_probe
snd_byt_rt5640_mc_probe() is never called in atomic context.
This function is only set as ".probe" in "struct platform_driver".
Despite never getting called from atomic context,
snd_byt_rt5640_mc_probe() calls devm_kzalloc() with GFP_ATOMIC,
which waits busily for allocation.
GFP_ATOMIC is not necessary and can be replaced with GFP_KERNEL,
to avoid busy waiting and improve the possibility of sucessful allocation.
This is found by a static analysis tool named DCNS written by myself.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | sound/soc/intel/boards/bytcr_rt5640.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c index a8d8bff788e7..ad5fcd5a1762 100644 --- a/sound/soc/intel/boards/bytcr_rt5640.c +++ b/sound/soc/intel/boards/bytcr_rt5640.c @@ -744,7 +744,7 @@ static int snd_byt_rt5640_mc_probe(struct platform_device *pdev) int i; is_bytcr = false; - priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_ATOMIC); + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; |