[PATCH 3.16.y-ckt 144/168] drivers/input/evdev.c: don't kfree() a vmalloc address

[Luis Henriques]

3.16.7-ckt3 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Andrew Morton <akpm at linux-foundation.org>

commit 92788ac1eb06e69a822de45e2a8a63fa45eb5be2 upstream.

If kzalloc() failed and then evdev_open_device() fails, evdev_open()
will pass a vmalloc'ed pointer to kfree.

This might fix https://bugzilla.kernel.org/show_bug.cgi?id=88401, where
there was a crash in kfree().

Reported-by: Christian Casteyde <casteyde.christian at free.fr>
Belatedly-Acked-by: Dmitry Torokhov <dmitry.torokhov at gmail.com>
Cc: Henrik Rydberg <rydberg at euromail.se>
Signed-off-by: Andrew Morton <akpm at linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds at linux-foundation.org>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 drivers/input/evdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index fd325ec9f064..b51970d1e9ee 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -422,7 +422,7 @@ static int evdev_open(struct inode *inode, struct file *file)
 
  err_free_client:
 	evdev_detach_client(evdev, client);
-	kfree(client);
+	kvfree(client);
 	return error;
 }
 
-- 
2.1.3