scsi: mvumi: Stop using plain integer as NULL pointer

Fix following sparse warning:

drivers/scsi/mvumi.c:1797:48: warning: Using plain integer as NULL pointer
drivers/scsi/mvumi.c:2143:50: warning: Using plain integer as NULL pointer
drivers/scsi/mvumi.c:755:58: warning: Using plain integer as NULL pointer

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/mvumi.c b/drivers/scsi/mvumi.c
index 3df02691a092f1d6e97604c63b8fc3c4fb811698..a5410615edacf5ad1987c27f9eda200f178fed03 100644 (file)
--- a/drivers/scsi/mvumi.c
+++ b/drivers/scsi/mvumi.c
@@ -752,7 +752,7 @@ static int mvumi_issue_blocked_cmd(struct mvumi_hba *mhba,
                spin_lock_irqsave(mhba->shost->host_lock, flags);
                atomic_dec(&cmd->sync_cmd);
                if (mhba->tag_cmd[cmd->frame->tag]) {
-                       mhba->tag_cmd[cmd->frame->tag] = 0;
+                       mhba->tag_cmd[cmd->frame->tag] = NULL;
                        dev_warn(&mhba->pdev->dev, "TIMEOUT:release tag [%d]\n",
                                                        cmd->frame->tag);
                        tag_release_one(mhba, &mhba->tag_pool, cmd->frame->tag);
@@ -1794,7 +1794,7 @@ static void mvumi_handle_clob(struct mvumi_hba *mhba)
                cmd = mhba->tag_cmd[ob_frame->tag];
 
                atomic_dec(&mhba->fw_outstanding);
-               mhba->tag_cmd[ob_frame->tag] = 0;
+               mhba->tag_cmd[ob_frame->tag] = NULL;
                tag_release_one(mhba, &mhba->tag_pool, ob_frame->tag);
                if (cmd->scmd)
                        mvumi_complete_cmd(mhba, cmd, ob_frame);
@@ -2139,7 +2139,7 @@ static enum blk_eh_timer_return mvumi_timed_out(struct scsi_cmnd *scmd)
        spin_lock_irqsave(mhba->shost->host_lock, flags);
 
        if (mhba->tag_cmd[cmd->frame->tag]) {
-               mhba->tag_cmd[cmd->frame->tag] = 0;
+               mhba->tag_cmd[cmd->frame->tag] = NULL;
                tag_release_one(mhba, &mhba->tag_pool, cmd->frame->tag);
        }
        if (!list_empty(&cmd->queue_pointer))