dm mpath: fix potential NULL pointer in feature arg processing
commitc72ff34c937a4572946fdcd79ecbff2fe81f7654
authorMike Snitzer <snitzer@redhat.com>
Tue, 2 Aug 2011 11:32:00 +0000 (2 12:32 +0100)
committerGreg Kroah-Hartman <gregkh@suse.de>
Mon, 8 Aug 2011 17:23:21 +0000 (8 10:23 -0700)
tree3c40ceeadc097dc39210e442138d4d726921acf2
parent67b0a8421ec7737f20db9f2ab150445a897f138a
dm mpath: fix potential NULL pointer in feature arg processing

commit 286f367dad40beb3234a18c17391d03ba939a7f3 upstream.

Avoid dereferencing a NULL pointer if the number of feature arguments
supplied is fewer than indicated.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/md/dm-mpath.c