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(parent: d49d465) | patch
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)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 9 Feb 2017 07:02:45 +0000 (08:02 +0100)
commit579a917538f145b96c7982c1d9f54181434959fe
treeab9e4ce2b808a0d6aae29f304a1bce4ae1012371tree | snapshot
parentd49d465d178fd62c0420827fb3c838b7d11a7ec1commit | 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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/ata/sata_mv.c diff | blob | history
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