gpu: host1x: Call host1x_device_add() under lock
authorThierry Reding <treding@nvidia.com>
Thu, 18 Dec 2014 14:06:56 +0000 (15:06 +0100)
committerThierry Reding <treding@nvidia.com>
Fri, 23 Jan 2015 11:07:01 +0000 (12:07 +0100)
Instead of locking within host1x_device_add(), call it under the lock to
make the locking more consistent.

Signed-off-by: Thierry Reding <treding@nvidia.com>
drivers/gpu/host1x/bus.c

index e4182e68e29caf00012b449897ac6e2439d93b6b..769116dba797882ea95bf2dca0498ed8a97f9d88 100644 (file)
@@ -323,9 +323,7 @@ static int host1x_device_add(struct host1x *host1x,
                return err;
        }
 
-       mutex_lock(&host1x->devices_lock);
        list_add_tail(&device->list, &host1x->devices);
-       mutex_unlock(&host1x->devices_lock);
 
        mutex_lock(&clients_lock);
 
@@ -414,11 +412,11 @@ static void host1x_attach_driver(struct host1x *host1x,
                }
        }
 
-       mutex_unlock(&host1x->devices_lock);
-
        err = host1x_device_add(host1x, driver);
        if (err < 0)
                dev_err(host1x->dev, "failed to allocate device: %d\n", err);
+
+       mutex_unlock(&host1x->devices_lock);
 }
 
 static void host1x_detach_driver(struct host1x *host1x,