4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Mikulas Patocka <mpatocka@xxxxxxxxxx>
commit 09a00abe3a9941c2715ca83eb88172cd2f54d8fd upstream.
We must use kzalloc when allocating the fb_deferred_io structure.
Otherwise, the field first_io is undefined and it causes a crash.
Signed-off-by: Mikulas Patocka <mpatocka@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/udl/udl_fb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/udl/udl_fb.c
+++ b/drivers/gpu/drm/udl/udl_fb.c
@@ -217,7 +217,7 @@ static int udl_fb_open(struct fb_info *i
struct fb_deferred_io *fbdefio;
- fbdefio = kmalloc(sizeof(struct fb_deferred_io), GFP_KERNEL);
+ fbdefio = kzalloc(sizeof(struct fb_deferred_io), GFP_KERNEL);
if (fbdefio) {
fbdefio->delay = DL_DEFIO_WRITE_DELAY;
