Unverified Commit 41daf6ba authored by Kefeng Wang's avatar Kefeng Wang Committed by Mark Brown
Browse files

ASoC: core: Fix Null-point-dereference in fmt_single_name() 



Check the return value of devm_kstrdup() in case of
Null-point-dereference.

Fixes: 45dd9943 ("ASoC: core: remove artificial component and DAI name constraint")
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reported-by: default avatarHulk Robot <hulkci@huawei.com>
Signed-off-by: default avatarKefeng Wang <wangkefeng.wang@huawei.com>
Link: https://lore.kernel.org/r/20210524024941.159952-1-wangkefeng.wang@huawei.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent af270254

sound/soc/soc-core.c

+2 −0
Original line number Diff line number Diff line
@@ -2225,6 +2225,8 @@ static char *fmt_single_name(struct device *dev, int *id) 
		return NULL;



	name = devm_kstrdup(dev, devname, GFP_KERNEL);

	if (!name)

		return NULL;



	/* are we a "%s.%d" name (platform and SPI components) */

	found = strstr(name, dev->driver->name);