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authorShlomo Pongratz <shlomop@mellanox.com>2013-04-10 18:26:46 +0400
committerRoland Dreier <roland@purestorage.com>2013-04-17 09:42:54 +0400
commiteec9e29fc5e9b417649830ab76a3aa10b90d2e9f (patch)
tree16fb7f69124d3602468deba7010cea29313771ce /drivers/infiniband
parent41ef2d5678d83af030125550329b6ae8b74618fa (diff)
downloadlinux-eec9e29fc5e9b417649830ab76a3aa10b90d2e9f.tar.xz
IB/core: Verify that QP handler is valid before dispatching events
For QPs of type IB_QPT_XRC_TGT the IB core assigns a common event handler __ib_shared_qp_event_handler(), and the optionally supplied event handler is stored. When the common handler is called it iterates on all opened QPs and calles the original handlers without checking if they are NULL. Fix that. Signed-off-by: Shlomo Pongratz <shlomop@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/core/verbs.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index a8fdd3381405..22192deb8828 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -348,7 +348,8 @@ static void __ib_shared_qp_event_handler(struct ib_event *event, void *context)
struct ib_qp *qp = context;
list_for_each_entry(event->element.qp, &qp->open_list, open_list)
- event->element.qp->event_handler(event, event->element.qp->qp_context);
+ if (event->element.qp->event_handler)
+ event->element.qp->event_handler(event, event->element.qp->qp_context);
}
static void __ib_insert_xrcd_qp(struct ib_xrcd *xrcd, struct ib_qp *qp)