From: Kimball Murray <kimball.murray@stratus.com>
Date: Thu, 2 Feb 2006 05:08:59 +0000 (-0500)
Subject: [PATCH] Input: mousedev - fix memory leak
X-Git-Tag: v2.6.15.4~19
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cacb5bd9e9c404b2e33f1d75f18604df34e16fad;p=thirdparty%2Fkernel%2Fstable.git

[PATCH] Input: mousedev - fix memory leak

Input: mousedev - fix memory leak

Apparently, "while true; do cat </dev/null >/dev/input/mice; done" causes
an OOM in a short amount of time. Funny that nobody noticed, it actually
is very easy to trigger just by switching between VT1 and VT7...

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
index 2d0af44ac4b96..b329f10f970f8 100644
--- a/drivers/input/mousedev.c
+++ b/drivers/input/mousedev.c
@@ -356,7 +356,7 @@ static void mousedev_free(struct mousedev *mousedev)
 	kfree(mousedev);
 }
 
-static int mixdev_release(void)
+static void mixdev_release(void)
 {
 	struct input_handle *handle;
 
@@ -370,8 +370,6 @@ static int mixdev_release(void)
 				mousedev_free(mousedev);
 		}
 	}
-
-	return 0;
 }
 
 static int mousedev_release(struct inode * inode, struct file * file)
@@ -384,9 +382,8 @@ static int mousedev_release(struct inode * inode, struct file * file)
 
 	if (!--list->mousedev->open) {
 		if (list->mousedev->minor == MOUSEDEV_MIX)
-			return mixdev_release();
-
-		if (!mousedev_mix.open) {
+			mixdev_release();
+		else if (!mousedev_mix.open) {
 			if (list->mousedev->exist)
 				input_close_device(&list->mousedev->handle);
 			else