[IA64] Compare pointer against NULL, not '0'

When comparing a pointer, it's clearer to compare it to NULL than to 0.

Signed-off-by: Yoann Padioleau <padator@wanadoo.fr>
Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/ia64/hp/sim/simscsi.c b/arch/ia64/hp/sim/simscsi.c
index bb87682bbb1b..64248b58f63f 100644
--- a/arch/ia64/hp/sim/simscsi.c
+++ b/arch/ia64/hp/sim/simscsi.c
@@ -101,7 +101,7 @@ simscsi_interrupt (unsigned long val)
 {
         struct scsi_cmnd *sc;
 
-        while ((sc = queue[rd].sc) != 0) {
+        while ((sc = queue[rd].sc) != NULL) {
                 atomic_dec(&num_reqs);
                 queue[rd].sc = NULL;
                 if (DBG)