rapidio/idt_gen2: fix locking warning

Fix lockdep warning during device probing: move sysfs initialization out
of code protected by a spin lock.

Link: http://lkml.kernel.org/r/1469125134-16523-10-git-send-email-alexandre.bounine@idt.com
Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Andre van Herk <andre.van.herk@prodrive-technologies.com>
Cc: Barry Wood <barry.wood@idt.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 4 deletions

diff --git a/drivers/rapidio/switches/idt_gen2.c b/drivers/rapidio/switches/idt_gen2.c
index 9f7fe21580bb..e67b923b1ca6 100644
--- a/drivers/rapidio/switches/idt_gen2.c
+++ b/drivers/rapidio/switches/idt_gen2.c
@@ -436,10 +436,11 @@ static int idtg2_probe(struct rio_dev *rdev, const struct rio_device_id *id)
                                     RIO_STD_RTE_DEFAULT_PORT, IDT_NO_ROUTE);
         }
 
+        spin_unlock(&rdev->rswitch->lock);
+
         /* Create device-specific sysfs attributes */
         idtg2_sysfs(rdev, true);
 
-        spin_unlock(&rdev->rswitch->lock);
         return 0;
 }
 
@@ -452,11 +453,9 @@ static void idtg2_remove(struct rio_dev *rdev)
                 return;
         }
         rdev->rswitch->ops = NULL;
-
+        spin_unlock(&rdev->rswitch->lock);
         /* Remove device-specific sysfs attributes */
         idtg2_sysfs(rdev, false);
-
-        spin_unlock(&rdev->rswitch->lock);
 }
 
 static struct rio_device_id idtg2_id_table[] = {