ASoC: intel: bxt_da7219_max98357a: Replace GFP_ATOMIC with GFP_KERNEL in
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>From 8f2f9215aa14904ddd9775f3b4e7af2d94189dea Mon Sep 17 00:00:00 2001
From: Jia-Ju Bai <baijiaju1...@gmail.com>
Date: Mon, 9 Apr 2018 18:46:21 +0800
Subject: [PATCH] ASoC: intel: bxt_da7219_max98357a: 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 <baijiaju1...@gmail.com>
Signed-off-by: Mark Brown <broo...@kernel.org>
sound/soc/intel/boards/bxt_da7219_max98357a.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/intel/boards/bxt_da7219_max98357a.c
index 668c0934e942..40eb979d5ac1 100644
@@ -571,7 +571,7 @@ static int broxton_audio_probe(struct platform_device *pdev)
struct bxt_card_private *ctx;
- ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_ATOMIC);
+ ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);