From 72c0373f795a5c326e6bd0f7469601f492124d70 Mon Sep 17 00:00:00 2001
From: Florian Zumbiehl <florz@florz.de>
Date: Sat, 29 Aug 2009 16:25:47 +0200
Subject: [PATCH] util_lookup_group(): fix memory leak if realloc() fails

---
 libudev/libudev-util-private.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/libudev/libudev-util-private.c b/libudev/libudev-util-private.c
index 5b5ecb1f5..b33ee79d6 100644
--- a/libudev/libudev-util-private.c
+++ b/libudev/libudev-util-private.c
@@ -154,9 +154,12 @@ gid_t util_lookup_group(struct udev *udev, const char *group)
 	buf = NULL;
 	gid = 0;
 	for (;;) {
-		buf = realloc(buf, buflen);
-		if (!buf)
+		char *newbuf;
+
+		newbuf = realloc(buf, buflen);
+		if (!newbuf)
 			break;
+		buf = newbuf;
 		errno = getgrnam_r(group, &grbuf, buf, buflen, &gr);
 		if (gr != NULL) {
 			gid = gr->gr_gid;
-- 
2.30.2