linux-kernel - [PATCH] ASoC: intel: skylake: Add check for dma_set_max_seg

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Message-Id: <20240429042320.2150567-1-nichen@iscas.ac.cn>
Date: Mon, 29 Apr 2024 12:23:20 +0800
From: Chen Ni <nichen@...as.ac.cn>
To: cezary.rojewski@...el.com,
	pierre-louis.bossart@...ux.intel.com,
	liam.r.girdwood@...ux.intel.com,
	peter.ujfalusi@...ux.intel.com,
	yung-chuan.liao@...ux.intel.com,
	ranjani.sridharan@...ux.intel.com,
	kai.vehmanen@...ux.intel.com,
	broonie@...nel.org,
	perex@...ex.cz,
	tiwai@...e.com,
	maarten.lankhorst@...ux.intel.com,
	amadeuszx.slawinski@...ux.intel.com
Cc: alsa-devel@...a-project.org,
	linux-sound@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Chen Ni <nichen@...as.ac.cn>
Subject: [PATCH] ASoC: intel: skylake: Add check for dma_set_max_seg_size

Add check for the return value of dma_set_max_seg_size() and return
the error if it fails in order to catch the error.

Fixes: c22a8086b384 ("ASoC: intel: skylake: Set max DMA segment size")
Signed-off-by: Chen Ni <nichen@...as.ac.cn>
---
 sound/soc/intel/skylake/skl.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c
index 117125187793..8edc13795462 100644
--- a/sound/soc/intel/skylake/skl.c
+++ b/sound/soc/intel/skylake/skl.c
@@ -943,7 +943,9 @@ static int skl_first_init(struct hdac_bus *bus)
 	/* allow 64bit DMA address if supported by H/W */
 	if (dma_set_mask_and_coherent(bus->dev, DMA_BIT_MASK(64)))
 		dma_set_mask_and_coherent(bus->dev, DMA_BIT_MASK(32));
-	dma_set_max_seg_size(bus->dev, UINT_MAX);
+	err = dma_set_max_seg_size(bus->dev, UINT_MAX);
+	if (err)
+		return err;
 
 	/* initialize streams */
 	snd_hdac_ext_stream_init_all
-- 
2.25.1