[PATCH] drivers/dax: Avoiding potential deadlock

[Pushkar Jambhlekar]

dax_dev_huge_fault returning without releasing lock. Making code change to avoid this situation

Signed-off-by: Pushkar Jambhlekar <pushkar.iit@xxxxxxxxx>
---
 drivers/dax/dax.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dax/dax.c b/drivers/dax/dax.c
index 0d1ca24..fd9c4db 100644
--- a/drivers/dax/dax.c
+++ b/drivers/dax/dax.c
@@ -590,7 +590,7 @@ static int dax_dev_huge_fault(struct vm_fault *vmf,
 		rc = __dax_dev_pud_fault(dax_dev, vmf);
 		break;
 	default:
-		return VM_FAULT_FALLBACK;
+		rc = VM_FAULT_FALLBACK;
 	}
 	rcu_read_unlock();
 
-- 
2.7.4