block: rbd: use NULL instead of 0
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@samsung.com> Reviewed-by: Sage Weil <sage@inktank.com>
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@ -2163,9 +2163,9 @@ static int rbd_img_request_fill(struct rbd_img_request *img_request,
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struct rbd_obj_request *obj_request = NULL;
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struct rbd_obj_request *next_obj_request;
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bool write_request = img_request_write_test(img_request);
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struct bio *bio_list = 0;
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struct bio *bio_list = NULL;
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unsigned int bio_offset = 0;
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struct page **pages = 0;
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struct page **pages = NULL;
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u64 img_offset;
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u64 resid;
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u16 opcode;
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