rapidio: fix potential null deref on failure path

If rio is not a switch then "rswitch" is null.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/rapidio/rio-scan.c b/drivers/rapidio/rio-scan.c
index a50391b6ba2a95b8afcc6d397a90c068c5f9bc36..3a59d5f018d39126f575d1c31b241812e85359ef 100644 (file)
--- a/drivers/rapidio/rio-scan.c
+++ b/drivers/rapidio/rio-scan.c
@@ -517,7 +517,7 @@ static struct rio_dev __devinit *rio_setup_device(struct rio_net *net,
        return rdev;
 
 cleanup:
-       if (rswitch->route_table)
+       if (rio_is_switch(rdev))
                kfree(rswitch->route_table);
 
        kfree(rdev);