1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/scsi/atp870u.c b/drivers/scsi/atp870u.c
index db6de5e6afb3..7d311541c76c 100644
--- a/drivers/scsi/atp870u.c
+++ b/drivers/scsi/atp870u.c
@@ -747,7 +747,7 @@ static void send_s870(struct atp_unit *dev,unsigned char c)
                 dev->quhd[c] = 0;
         }
         workreq = dev->quereq[c][dev->quhd[c]];
-        if (dev->id[c][scmd_id(workreq)].curr_req == 0) {       
+        if (dev->id[c][scmd_id(workreq)].curr_req == NULL) {
                 dev->id[c][scmd_id(workreq)].curr_req = workreq;
                 dev->last_cmd[c] = scmd_id(workreq);
                 goto cmd_subp;