[PATCH -next] staging: sync: fix return value check in sync_fence_alloc()

[Wei Yongjun]

From: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>

In case of error, the function anon_inode_getfile() returns
ERR_PTR() and never returns NULL. The NULL test in the return
value check should be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
---
 drivers/staging/android/sync.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/android/sync.c b/drivers/staging/android/sync.c
index b9bb974..bf66c19 100644
--- a/drivers/staging/android/sync.c
+++ b/drivers/staging/android/sync.c
@@ -261,7 +261,7 @@ static struct sync_fence *sync_fence_alloc(const char *name)
 
 	fence->file = anon_inode_getfile("sync_fence", &sync_fence_fops,
 					 fence, 0);
-	if (fence->file == NULL)
+	if (IS_ERR(fence->file))
 		goto err;
 
 	kref_init(&fence->kref);

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