[S390] sparse: fix sparse NULL pointer warnings
Fix two NULL pointer warnings in the dasd driver:
drivers/s390/block/dasd_eckd.c:2353:20: warning: Using plain integer as NULL pointer
drivers/s390/block/dasd_eckd.c:2415:44: warning: Using plain integer as NULL pointer
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index cca2509..6ab2968 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -2386,7 +2386,7 @@
new_track = 1;
end_idaw = 0;
len_to_track_end = 0;
- idaw_dst = 0;
+ idaw_dst = NULL;
idaw_len = 0;
rq_for_each_segment(bv, req, iter) {
dst = page_address(bv->bv_page) + bv->bv_offset;
@@ -2448,7 +2448,7 @@
if (end_idaw) {
idaws = idal_create_words(idaws, idaw_dst,
idaw_len);
- idaw_dst = 0;
+ idaw_dst = NULL;
idaw_len = 0;
end_idaw = 0;
}