From d159037abbe3412285c271bdfb9cdf19e62678ff Mon Sep 17 00:00:00 2001
From: Austin Kim <austin.kim@lge.com>
Date: Tue, 9 Nov 2021 00:37:42 +0000
Subject: [PATCH] ALSA: synth: missing check for possible NULL after the call to kstrdup
Git-commit: d159037abbe3412285c271bdfb9cdf19e62678ff
Patch-mainline: v5.16-rc1
References: git-fixes
If kcalloc() return NULL due to memory starvation, it is possible for
kstrdup() to return NULL in similar case. So add null check after the call
to kstrdup() is made.
[ minor coding-style fix by tiwai ]
Signed-off-by: Austin Kim <austin.kim@lge.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211109003742.GA5423@raspberrypi
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/synth/emux/emux.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/synth/emux/emux.c b/sound/synth/emux/emux.c
index 49d1976a132c..5ed8e36d2e04 100644
--- a/sound/synth/emux/emux.c
+++ b/sound/synth/emux/emux.c
@@ -88,7 +88,7 @@ int snd_emux_register(struct snd_emux *emu, struct snd_card *card, int index, ch
emu->name = kstrdup(name, GFP_KERNEL);
emu->voices = kcalloc(emu->max_voices, sizeof(struct snd_emux_voice),
GFP_KERNEL);
- if (emu->voices == NULL)
+ if (emu->name == NULL || emu->voices == NULL)
return -ENOMEM;
/* create soundfont list */
--
2.31.1