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authorHariprasad S <hariprasad@chelsio.com>2016-05-05 01:27:30 +0530
committerDoug Ledford <dledford@redhat.com>2016-05-05 16:11:14 -0400
commit88bc230dc614b8e19000022d0ae2c1dfd578a0b0 (patch)
tree303014b1535bc83ae3696f3ff2689b2f70e9a745 /drivers/infiniband/hw/cxgb4
parentRDMA/iw_cxgb4: release ep resources on accept arp failure (diff)
downloadlinux-dev-88bc230dc614b8e19000022d0ae2c1dfd578a0b0.tar.xz
linux-dev-88bc230dc614b8e19000022d0ae2c1dfd578a0b0.zip
RDMA/iw_cxgb4: stop ep timer on close failure
In c4iw_ep_disconnect(), if we start the ep timer to begin a close, but send_halfclose() fails, we need to stop the timer and send a CLOSE event up to the IWCM before releasing the resources. Otherwise, we can crash when the ep timer fires if the ep is referencing a previous instance of the device. This can happen as part of adapter reset/recovery, for instance. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/cxgb4')
-rw-r--r--drivers/infiniband/hw/cxgb4/cm.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index 49784a40d1d1..cc9836e46800 100644
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -3467,8 +3467,13 @@ int c4iw_ep_disconnect(struct c4iw_ep *ep, int abrupt, gfp_t gfp)
set_bit(EP_DISC_CLOSE, &ep->com.history);
ret = send_halfclose(ep, gfp);
}
- if (ret)
+ if (ret) {
+ if (!abrupt) {
+ stop_ep_timer(ep);
+ close_complete_upcall(ep, -EIO);
+ }
fatal = 1;
+ }
}
mutex_unlock(&ep->com.mutex);
if (fatal)