diff options
| author | Kefeng Wang <wangkefeng.wang@huawei.com> | 2021-05-24 10:49:41 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-06-16 12:01:45 +0200 |
| commit | 0e2c9aeb00289f279b8181fbd4c20765127d8943 (patch) | |
| tree | b2875064eadd7395c5f3e18c1e75c4f13d8becac | |
| parent | d83075c25a28e6e8f02e531c8dd4b4e0b58c3ef5 (diff) | |
ASoC: core: Fix Null-point-dereference in fmt_single_name()
commit 41daf6ba594d55f201c50280ebcd430590441da1 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -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 bf65cba232e6..b22674e3a89c 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -2231,6 +2231,8 @@ 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); |