diff options
| author | Kefeng Wang <wangkefeng.wang@huawei.com> | 2021-05-24 05:49:41 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-05-24 11:49:28 +0300 |
| commit | 41daf6ba594d55f201c50280ebcd430590441da1 (patch) | |
| tree | d415141080c70d64700aa94df523b68c62c1a88f /sound | |
| parent | af2702549d68519ac78228e915d9b2c199056787 (diff) | |
| download | linux-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.c | 2 |
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); |