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ata: sata_mv:- Handle return value of devm_ioremap.
authorArvind Yadav <arvind.yadav.cs@gmail.com>
Mon, 12 Dec 2016 17:43:27 +0000 (23:13 +0530)
committerWilly Tarreau <w@1wt.eu>
Tue, 20 Jun 2017 12:04:18 +0000 (14:04 +0200)
commitbb3d39c70fe12ab44c4dff3785c3ff322adde851
treeaa19f11a6fdcf8281031bbb16ea1ceee8c01d065tree
parent055d0a8d61f484a2a95b3a02c3381c50333a690bcommit | diff
ata: sata_mv:- Handle return value of devm_ioremap.

commit 064c3db9c564cc5be514ac21fb4aa26cc33db746 upstream.

Here, If devm_ioremap will fail. It will return NULL.
Then hpriv->base = NULL - 0x20000; Kernel can run into
a NULL-pointer dereference. This error check will avoid
NULL pointer dereference.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Willy Tarreau <w@1wt.eu>
drivers/ata/sata_mv.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git