!1201 [sync] PR-1144: crypto: hisilicon/qm: modify loop exit condition

Merge Pull Request from: @openeuler-sync-bot 
 

Origin pull request: 
https://gitee.com/openeuler/kernel/pulls/1144 
 
Loop branch using 'i++' as condition will cause the loop to not execute
when 'i == 0', should use '++i', Fix it.

issue： https://gitee.com/openeuler/kernel/issues/I7DUYJ 
 
Link:https://gitee.com/openeuler/kernel/pulls/1201 

Reviewed-by: Yang Shen <shenyang39@huawei.com> 
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com> 

drivers/crypto/hisilicon/migration/acc_vf_migration.c

@@ -104,7 +104,7 @@ static int qm_wait_mb_finish(struct hisi_qm *qm, struct qm_mailbox *mailbox)
 {
 	int i = 0;
 
-	while (i++) {
+	while (++i) {
 		qm_mb_read(qm, mailbox);
 		if (!((le16_to_cpu(mailbox->w0) >> QM_MB_BUSY_SHIFT) & 0x1))
 			break;

drivers/crypto/hisilicon/qm.c

@@ -666,7 +666,7 @@ static int qm_wait_mb_finish(struct hisi_qm *qm, struct qm_mailbox *mailbox)
 {
 	int i = 0;
 
-	while (i++) {
+	while (++i) {
 		qm_mb_read(qm, mailbox);
 		if (!((le16_to_cpu(mailbox->w0) >> QM_MB_BUSY_SHIFT) & 0x1))
 			break;