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| author |   Jia-Ju Bai <baijiaju1990@gmail.com> | 2018-04-09 18:47:07 +0800 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2018-04-16 11:53:39 +0100 |
| commit | 270e1ad6d1f76dfebea19a277a65cefd185f85b0 (patch) | |
| tree | aaa96878e9a151ebb74e0152d9bc7c1a1891a65d /sound/soc/intel/boards | |
| parent | ASoC: intel: bxt_da7219_max98357a: Replace GFP_ATOMIC with GFP_KERNEL in broxton_audio_probe (diff) | |
| download | linux-dev-270e1ad6d1f76dfebea19a277a65cefd185f85b0.tar.xz linux-dev-270e1ad6d1f76dfebea19a277a65cefd185f85b0.zip | |
ASoC: intel: bxt_rt298: Replace GFP_ATOMIC with GFP_KERNEL in broxton_audio_probe
broxton_audio_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,
broxton_audio_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>
Diffstat (limited to 'sound/soc/intel/boards')
| -rw-r--r-- | sound/soc/intel/boards/bxt_rt298.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/soc/intel/boards/bxt_rt298.c b/sound/soc/intel/boards/bxt_rt298.c index c7e9024e65ef..b68c289558a8 100644 --- a/sound/soc/intel/boards/bxt_rt298.c +++ b/sound/soc/intel/boards/bxt_rt298.c @@ -593,7 +593,7 @@ static int broxton_audio_probe(struct platform_device *pdev) } } - ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_ATOMIC); + ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); if (!ctx) return -ENOMEM; |