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authorVitaliy Ivanov <vitalivanov@gmail.com>2011-07-25 17:12:49 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-25 20:57:12 -0700
commitfbee8d933c775cdb9daac3063659cda38c1776c2 (patch)
tree22027a33c69747445c77cc39d1445420067f16b3 /arch/um
parent7fa38e7e9ead2dc7a346db10dd27a40dd83b2a26 (diff)
downloadlinux-fbee8d933c775cdb9daac3063659cda38c1776c2.tar.gz
uml: drivers/net_user.c memory leak fix
Perform memory cleanup on exit.  On receiving invalid 'pid' we still
should clean 'output' variable.

Signed-off-by: Vitaliy Ivanov <vitalivanov@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/um')
-rw-r--r--arch/um/drivers/net_user.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/um/drivers/net_user.c b/arch/um/drivers/net_user.c
index 9415dd9e63ef..520118888f16 100644
--- a/arch/um/drivers/net_user.c
+++ b/arch/um/drivers/net_user.c
@@ -228,7 +228,10 @@ static void change(char *dev, char *what, unsigned char *addr,
 		       "buffer\n");
 
 	pid = change_tramp(argv, output, output_len);
-	if (pid < 0) return;
+	if (pid < 0) {
+		kfree(output);
+		return;
+	}
 
 	if (output != NULL) {
 		printk("%s", output);