From: Clemens Ladisch <clemens@ladisch.de>
Date: Mon, 12 Oct 2009 06:46:53 +0000 (+0200)
Subject: hcontrol: fix memory leak
X-Git-Tag: v1.0.22~4
X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=866af7359cfbbaa6215190565dcd58222ca441d1;p=alsa-python.git

hcontrol: fix memory leak

The pfd array was never freed.  In this function, we can just replace
malloc with alloca.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---

diff --git a/pyalsa/alsahcontrol.c b/pyalsa/alsahcontrol.c
index 68d8228..b2db13e 100644
--- a/pyalsa/alsahcontrol.c
+++ b/pyalsa/alsahcontrol.c
@@ -175,9 +175,7 @@ pyalsahcontrol_registerpoll(struct pyalsahcontrol *self, PyObject *args)
 	count = snd_hctl_poll_descriptors_count(self->handle);
 	if (count <= 0)
 		Py_RETURN_NONE;
-	pfd = malloc(sizeof(struct pollfd) * count);
-	if (pfd == NULL)
-		Py_RETURN_NONE;
+	pfd = alloca(sizeof(struct pollfd) * count);
 	count = snd_hctl_poll_descriptors(self->handle, pfd, count);
 	if (count <= 0)
 		Py_RETURN_NONE;