[PATCH 1/2] drivers/dax: Avoiding potential deadlock

Pushkar Jambhlekar
2017-04-11T05:24:56Z

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

Signed-off-by: Pushkar Jambhlekar <pushkar.iit@gmail.com>
---
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