From: Selvin Xavier <selvin.xavier@avagotech.com>
Date: Tue, 20 Oct 2015 08:47:57 +0000 (+0530)
Subject: RDMA/ocrdma: Avoid a possible crash in ocrdma_rem_port_stats
X-Git-Tag: v4.4-rc1~78^2~60
X-Git-Url: http://git.cascardo.eti.br/?a=commitdiff_plain;h=fb16d8c49e6fa2791620cf2cd61d6daa123ed51e;p=cascardo%2Flinux.git

RDMA/ocrdma: Avoid a possible crash in ocrdma_rem_port_stats

debugfs_remove should be called before freeing the driver
stats resources to avoid any crash during ocrdma_remove.

Signed-off-by: Devesh Sharma <devesh.sharma@avagotech.com>
Signed-off-by: Selvin Xavier <selvin.xavier@avagotech.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
---

diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_stats.c b/drivers/infiniband/hw/ocrdma/ocrdma_stats.c
index 69334e214571..86c303a620c1 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_stats.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_stats.c
@@ -855,9 +855,9 @@ void ocrdma_rem_port_stats(struct ocrdma_dev *dev)
 {
 	if (!dev->dir)
 		return;
+	debugfs_remove(dev->dir);
 	mutex_destroy(&dev->stats_lock);
 	ocrdma_release_stats_mem(dev);
-	debugfs_remove(dev->dir);
 }
 
 void ocrdma_init_debugfs(void)