From 786d986ea25632e3d8e7ad5ac2780861ff2b654f Mon Sep 17 00:00:00 2001 From: Samuel Iglesias Gonsalvez Date: Wed, 23 May 2012 15:54:44 +0200 Subject: [PATCH] Staging: ipack/bridges/tpci200: check if the remove function is available To avoid a dereference of a NULL pointer, the availability of the function is checked before its use. Signed-off-by: Samuel Iglesias Gonsalvez Signed-off-by: Greg Kroah-Hartman --- drivers/staging/ipack/bridges/tpci200.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/staging/ipack/bridges/tpci200.c b/drivers/staging/ipack/bridges/tpci200.c index 0c2a50a..ee26d9a 100644 --- a/drivers/staging/ipack/bridges/tpci200.c +++ b/drivers/staging/ipack/bridges/tpci200.c @@ -764,6 +764,8 @@ out: static void tpci200_slot_remove(struct tpci200_slot *slot) { if ((slot->dev == NULL) || + (slot->dev->driver == NULL) || + (slot->dev->driver->ops == NULL) || (slot->dev->driver->ops->remove == NULL)) return; -- 2.7.4