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(parent: b41615a) | 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 07:08:26 +0000 (08:08 +0100)
commitfc794153c4074dff6487a2d22f1a23246c329bdf
tree608815f8e866455b994627e6513939763a1b6a43tree | snapshot
parentb41615aa705626e0fbb5541e4715090370fe8c23commit | 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