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ata: sata_mv:- Handle return value of devm_ioremap.
author
Arvind Yadav
<arvind.yadav.cs@gmail.com>
Mon, 12 Dec 2016 17:43:27 +0000
(23:13 +0530)
committer
Ben Hutchings
<ben@decadent.org.uk>
Thu, 16 Mar 2017 02:18:39 +0000
(
02:18
+0000)
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: Ben Hutchings <ben@decadent.org.uk>
drivers/ata/sata_mv.c
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drivers/ata/sata_mv.c
Simple merge