[PATCH 1/3] block: rbd: use NULL instead of 0

[Jingoo Han]

The local variables such as 'bio_list', and 'pages' are pointers;
thus, use NULL instead of 0 to fix the following sparse warnings.

drivers/block/rbd.c:2166:32: warning: Using plain integer as NULL pointer
drivers/block/rbd.c:2168:31: warning: Using plain integer as NULL pointer

Signed-off-by: Jingoo Han <jg1.han@xxxxxxxxxxx>
---
 drivers/block/rbd.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 9e00010..fa198de 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -2163,9 +2163,9 @@ static int rbd_img_request_fill(struct rbd_img_request *img_request,
 	struct rbd_obj_request *obj_request = NULL;
 	struct rbd_obj_request *next_obj_request;
 	bool write_request = img_request_write_test(img_request);
-	struct bio *bio_list = 0;
+	struct bio *bio_list = NULL;
 	unsigned int bio_offset = 0;
-	struct page **pages = 0;
+	struct page **pages = NULL;
 	u64 img_offset;
 	u64 resid;
 	u16 opcode;
-- 
1.7.10.4


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