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author | Raju Rangoju <rajur@chelsio.com> | 2018-04-23 21:42:37 +0530 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-05-09 09:51:52 +0200 |
commit | 38a65e7535031abbf796e2c645431bf7998d4084 (patch) | |
tree | 768274f1c573476ed362e750b3db6066558d2383 /drivers/infiniband/hw/cxgb4/iw_cxgb4.h | |
parent | bd9ca962eeb05767efed7c2dd62d201a54a9d727 (diff) | |
download | linux-stable-38a65e7535031abbf796e2c645431bf7998d4084.tar.gz linux-stable-38a65e7535031abbf796e2c645431bf7998d4084.tar.bz2 linux-stable-38a65e7535031abbf796e2c645431bf7998d4084.zip |
RDMA/cxgb4: release hw resources on device removal
commit 26bff1bd74a4f7417509a83295614e9dab995b2a upstream.
The c4iw_rdev_close() logic was not releasing all the hw
resources (PBL and RQT memory) during the device removal
event (driver unload / system reboot). This can cause panic
in gen_pool_destroy().
The module remove function will wait for all the hw
resources to be released during the device removal event.
Fixes c12a67fe(iw_cxgb4: free EQ queue memory on last deref)
Signed-off-by: Raju Rangoju <rajur@chelsio.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Cc: stable@vger.kernel.org
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/infiniband/hw/cxgb4/iw_cxgb4.h')
-rw-r--r-- | drivers/infiniband/hw/cxgb4/iw_cxgb4.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h index 20c481115a99..9bb2e0a50c7f 100644 --- a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h +++ b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h @@ -185,6 +185,10 @@ struct c4iw_rdev { struct wr_log_entry *wr_log; int wr_log_size; struct workqueue_struct *free_workq; + struct completion rqt_compl; + struct completion pbl_compl; + struct kref rqt_kref; + struct kref pbl_kref; }; static inline int c4iw_fatal_error(struct c4iw_rdev *rdev) |