git.ipfire.org Git - thirdparty/kernel/stable.git/commit

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 09:54:57 +0000 (11:54 +0200)
commit	4eb9e877981af1f3cf1d4a04687567805b419c6c
tree	66982c70c9d50e04816cbe5c4e1623386a03a0bb	tree \| snapshot
parent	9b116cfce9338cb1fe2746e61be77b5aeebdc447	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>