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[PATCH] drivers/dax: Avoiding potential deadlock

From	Pushkar Jambhlekar <pushkar.iit@gmail.com>
Newsgroups	linux.kernel
Subject	[PATCH] drivers/dax: Avoiding potential deadlock
Date	2017-04-11 06:50 +0200
Message-ID	<tuVUB-2g1-5@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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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

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[PATCH] drivers/dax: Avoiding potential deadlock Pushkar Jambhlekar <pushkar.iit@gmail.com> - 2017-04-11 06:50 +0200
  Re: [PATCH] drivers/dax: Avoiding potential deadlock Dan Williams <dan.j.williams@intel.com> - 2017-04-11 07:00 +0200
    Re: [PATCH] drivers/dax: Avoiding potential deadlock Pushkar Jambhlekar <pushkar.iit@gmail.com> - 2017-04-11 07:30 +0200

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