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ALSA: jack: Check the return value of kstrdup()

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commit c01c1db1dc632edafb0dff32d40daf4f9c1a4e19 upstream.

kstrdup() can return NULL, it is better to check the return value of it.

Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/tencent_094816F3522E0DC704056C789352EBBF0606@qq.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Xiaoke Wang 2021-12-13 15:39:31 +08:00 committed by Greg Kroah-Hartman
parent 51c7b2a7b8
commit a96c08e0b4
1 changed files with 4 additions and 0 deletions
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4
sound/core/jack.c
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@ -220,6 +220,10 @@ int snd_jack_new(struct snd_card *card, const char *id, int type,
return -ENOMEM;
jack->id = kstrdup(id, GFP_KERNEL);
if (jack->id == NULL) {
kfree(jack);
return -ENOMEM;
}
/* don't creat input device for phantom jack */
if (!phantom_jack) {