summaryrefslogtreecommitdiff
path: root/sound
diff options
context:
space:
mode:
authorKefeng Wang <wangkefeng.wang@huawei.com>2021-05-24 05:49:41 +0300
committerMark Brown <broonie@kernel.org>2021-05-24 11:49:28 +0300
commit41daf6ba594d55f201c50280ebcd430590441da1 (patch)
treed415141080c70d64700aa94df523b68c62c1a88f /sound
parentaf2702549d68519ac78228e915d9b2c199056787 (diff)
downloadlinux-41daf6ba594d55f201c50280ebcd430590441da1.tar.xz
ASoC: core: Fix Null-point-dereference in fmt_single_name()
Check the return value of devm_kstrdup() in case of Null-point-dereference. Fixes: 45dd9943fce0 ("ASoC: core: remove artificial component and DAI name constraint") Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Link: https://lore.kernel.org/r/20210524024941.159952-1-wangkefeng.wang@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/soc-core.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 1c0904acb935..a76974ccfce1 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -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);