[PATCH 4.9 165/177] RDMA/ocrdma: Fix permissions for OCRDMA_RESET_STATS

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Anton Vasilyev <vasilyev@xxxxxxxxx>


[ Upstream commit 744820869166c8c78be891240cf5f66e8a333694 ]

Debugfs file reset_stats is created with S_IRUSR permissions,
but ocrdma_dbgfs_ops_read() doesn't support OCRDMA_RESET_STATS,
whereas ocrdma_dbgfs_ops_write() supports only OCRDMA_RESET_STATS.

The patch fixes misstype with permissions.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Anton Vasilyev <vasilyev@xxxxxxxxx>
Acked-by: Selvin Xavier <selvin.xavier@xxxxxxxxxxxx>
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/infiniband/hw/ocrdma/ocrdma_stats.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/infiniband/hw/ocrdma/ocrdma_stats.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_stats.c
@@ -836,7 +836,7 @@ void ocrdma_add_port_stats(struct ocrdma
 
 	dev->reset_stats.type = OCRDMA_RESET_STATS;
 	dev->reset_stats.dev = dev;
-	if (!debugfs_create_file("reset_stats", S_IRUSR, dev->dir,
+	if (!debugfs_create_file("reset_stats", 0200, dev->dir,
 				&dev->reset_stats, &ocrdma_dbg_ops))
 		goto err;