git.ipfire.org Git - people/arne

author	Kangjie Lu <kjlu@umn.edu>
	Mon, 1 Apr 2019 15:46:58 +0000 (17:46 +0200)
committer	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
	Sat, 15 Jun 2019 09:54:10 +0000 (11:54 +0200)
commit	1f2611af4581a556dff4e99c860e3d1c1c6c3024
tree	857af9203dccc758b494253f735d1b938e849393	tree \| snapshot
parent	5957f6f5aaa67ced66e4a50264cfdbf6049f7a4b	commit \| diff

video: hgafb: fix potential NULL pointer dereference

[ Upstream commit ec7f6aad57ad29e4e66cc2e18e1e1599ddb02542 ]

When ioremap fails, hga_vram should not be dereferenced. The fix
check the failure to avoid NULL pointer dereference.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Cc: Aditya Pakki <pakki001@umn.edu>
Cc: Ferenc Bakonyi <fero@drama.obuda.kando.hu>
[b.zolnierkie: minor patch summary fixup]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>