From: Jia-Ju Bai Date: Mon, 9 Apr 2018 10:48:31 +0000 (+0800) Subject: ASoC: intel: cht_bsw_rt5645: Replace GFP_ATOMIC with GFP_KERNEL in snd_cht_mc_probe X-Git-Tag: for-linus-20180616~69^2^2~245 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=f3cc330a10493ed5948f7019a78dfa89721858c8;p=linux-block.git ASoC: intel: cht_bsw_rt5645: Replace GFP_ATOMIC with GFP_KERNEL in snd_cht_mc_probe snd_cht_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_cht_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 Signed-off-by: Mark Brown --- diff --git a/sound/soc/intel/boards/cht_bsw_rt5645.c b/sound/soc/intel/boards/cht_bsw_rt5645.c index 49ba1a956a06..f5a5ea6a093c 100644 --- a/sound/soc/intel/boards/cht_bsw_rt5645.c +++ b/sound/soc/intel/boards/cht_bsw_rt5645.c @@ -539,7 +539,7 @@ static int snd_cht_mc_probe(struct platform_device *pdev) int ret_val = 0; int i; - drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC); + drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL); if (!drv) return -ENOMEM;