From: David Fries <David@Fries.net>
Date: Tue, 7 Jan 2020 15:18:10 +0000 (-0600)
Subject: mixer: Fix memory leak for more than 16 file descriptor case
X-Git-Tag: v1.2.2~21
X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=14ad963e192f101246e9b559d3b3fd41268330fb;p=alsa-lib.git

mixer: Fix memory leak for more than 16 file descriptor case

Signed-off-by: David Fries <David@Fries.net>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

diff --git a/src/mixer/mixer.c b/src/mixer/mixer.c
index 82056474..b1af9945 100644
--- a/src/mixer/mixer.c
+++ b/src/mixer/mixer.c
@@ -767,7 +767,7 @@ int snd_mixer_wait(snd_mixer_t *mixer, int timeout)
 	if (count < 0)
 		return count;
 	if ((unsigned int) count > sizeof(spfds) / sizeof(spfds[0])) {
-		pfds = malloc(count * sizeof(*pfds));
+		pfds = alloca(count * sizeof(*pfds));
 		if (!pfds)
 			return -ENOMEM;
 		err = snd_mixer_poll_descriptors(mixer, pfds,