[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>

diff --git a/arch/ia64/hp/sim/simscsi.c b/arch/ia64/hp/sim/simscsi.c
index bb87682bbb1be5862ec767e6088fd0de21f1f068..64248b58f63ffc0801d7bd15769b8d2f7421bb41 100644 (file)
--- 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)