Thread (17 messages) flat view 17 messages, 2 authors, 2016-08-21

[net-next 13/15] i40e: Correcting mutex usage in client code

From: Jeff Kirsher <hidden>
Date: 2016-08-20 06:52:22
Subsystem: intel ethernet drivers, networking drivers, the rest · Maintainers: Tony Nguyen, Przemek Kitszel, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

From: Avinash Dayanand <redacted>

Correcting the mutex usage, in client_subtask(), mutex_unlock has
to be called just before client_del_instance() since this function opens
and later closes the same mutex again.
Similarly in client_is_registered removing the mutex since it closes
the mutex twice.

This is a patch suggested by RDMA team.

Change-ID: Icce519c266e4221b8a2a72a15ba5bf01750e5852
Signed-off-by: Avinash Dayanand <redacted>
Tested-by: Andrew Bowers <redacted>
Signed-off-by: Jeff Kirsher <redacted>
---
 drivers/net/ethernet/intel/i40e/i40e_client.c | 1 +
 1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_client.c b/drivers/net/ethernet/intel/i40e/i40e_client.c
index 09a37cf..5404b32 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_client.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_client.c
@@ -576,6 +576,7 @@ void i40e_client_subtask(struct i40e_pf *pf)
 			set_bit(__I40E_CLIENT_INSTANCE_OPENED, &cdev->state);
 		} else {
 			/* remove client instance */
+			mutex_unlock(&i40e_client_instance_mutex);
 			i40e_client_del_instance(pf, client);
 			atomic_dec(&client->ref_cnt);
 			continue;
-- 
2.7.4
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help