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(parent: 7fb7414) | patch
tty: mxs-auart: fix a potential NULL pointer dereference
authorKangjie Lu <kjlu@umn.edu>
Thu, 14 Mar 2019 07:21:51 +0000 (02:21 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 3 Apr 2019 04:26:24 +0000 (06:26 +0200)
commit124e42064c0dcbc0a260d0e18ed2410976422c54
tree44137e712add9832a8e94fd3dd0e8641e8beeb22tree | snapshot
parent7fb7414da97e6ebbe1a220b38415700400d0b875commit | diff
tty: mxs-auart: fix a potential NULL pointer dereference

commit 6734330654dac550f12e932996b868c6d0dcb421 upstream.

In case ioremap fails, the fix returns -ENOMEM to avoid NULL
pointer dereferences.
Multiple places use port.membase.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/mxs-auart.c diff | blob | history
Domain: System / Kernel;