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tty: serial: 8250: 8250_gsc:- Handle return NULL error from ioremap_nocache
authorArvind Yadav <arvind.yadav.cs@gmail.com>
Thu, 19 Jan 2017 08:00:44 +0000 (13:30 +0530)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 19 Jan 2017 13:20:23 +0000 (14:20 +0100)
commit2cc32b18d1243d65dc312478be08dd5856b44523
treeeecf3cef1b71453cd6d04309839bfdccf50cfcbetree | snapshot (tar.gz zip)
parent28ec9570a22fcf42d5154f6a48dc5b2afdd8d9a3commit | diff
tty: serial: 8250: 8250_gsc:- Handle return NULL error from ioremap_nocache

Here, If ioremap_nocache will fail. It will return NULL.
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/8250/8250_gsc.c diff | blob | blame | history