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authorSteve Wise <swise@opengridcomputing.com>2009-09-09 11:25:56 -0700
committerRoland Dreier <rolandd@cisco.com>2009-09-09 11:25:56 -0700
commitffc40c6433e763209d2b1ec5b1a9854eb3bcd61c (patch)
tree05e3ae0b2e1eb031849e8202d1b8a0ace0b22536 /drivers/infiniband
parent13a239330abdda5afcb1161fce68ec214af2cc90 (diff)
downloadop-kernel-dev-ffc40c6433e763209d2b1ec5b1a9854eb3bcd61c.zip
op-kernel-dev-ffc40c6433e763209d2b1ec5b1a9854eb3bcd61c.tar.gz
RDMA/cxgb3: Clean up properly on FW mismatch failures
FW mismatches can cause a crash in the iw_cxgb3 event handler. - NULL the t3cdev->ulp pointer on failures in cxio_rdev_open() - Silently ignore events when the ulp ptr is NULL in iwch_err_handler() Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/hw/cxgb3/cxio_hal.c1
-rw-r--r--drivers/infiniband/hw/cxgb3/iwch.c5
2 files changed, 5 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/cxgb3/cxio_hal.c b/drivers/infiniband/hw/cxgb3/cxio_hal.c
index 4dec515..72ed339 100644
--- a/drivers/infiniband/hw/cxgb3/cxio_hal.c
+++ b/drivers/infiniband/hw/cxgb3/cxio_hal.c
@@ -1034,6 +1034,7 @@ err3:
err2:
cxio_hal_destroy_ctrl_qp(rdev_p);
err1:
+ rdev_p->t3cdev_p->ulp = NULL;
list_del(&rdev_p->entry);
return err;
}
diff --git a/drivers/infiniband/hw/cxgb3/iwch.c b/drivers/infiniband/hw/cxgb3/iwch.c
index 5796170..3f0c99d 100644
--- a/drivers/infiniband/hw/cxgb3/iwch.c
+++ b/drivers/infiniband/hw/cxgb3/iwch.c
@@ -165,10 +165,13 @@ static void close_rnic_dev(struct t3cdev *tdev)
static void iwch_event_handler(struct t3cdev *tdev, u32 evt, u32 port_id)
{
struct cxio_rdev *rdev = tdev->ulp;
- struct iwch_dev *rnicp = rdev_to_iwch_dev(rdev);
+ struct iwch_dev *rnicp;
struct ib_event event;
u32 portnum = port_id + 1;
+ if (!rdev)
+ return;
+ rnicp = rdev_to_iwch_dev(rdev);
switch (evt) {
case OFFLOAD_STATUS_DOWN: {
rdev->flags = CXIO_ERROR_FATAL;
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