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Commit e053651f authored by Austin Kim's avatar Austin Kim Committed by Greg Kroah-Hartman
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ALSA: synth: missing check for possible NULL after the call to kstrdup 



commit d159037abbe3412285c271bdfb9cdf19e62678ff upstream.

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: default avatarAustin Kim <austin.kim@lge.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20211109003742.GA5423@raspberrypi


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 76711240

sound/synth/emux/emux.c

+1 −1
Original line number Diff line number Diff line
@@ -101,7 +101,7 @@ 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 */