hpre:fix the call trace wrong when unbind the hpre device.

driver inclusion
category: bugfix
bugzilla: NA
CVE: NA

Fix the call trace wrong when unbind the hpre device.

Feature or Bugfix:Bugfix
Signed-off-by: Nyekai (A) <yekai13@huawei.com>
Reviewed-by: Nxuzaibo <xuzaibo@huawei.com>
Reviewed-by: NZhou Wang <wangzhou1@hisilicon.com>
Reviewed-by: NYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

drivers/crypto/hisilicon/hpre/hpre.h

@@ -13,6 +13,7 @@
 #define HPRE_PF_DEF_Q_NUM		64
 #define HPRE_PF_DEF_Q_BASE		0
 #define HPRE_RESET			0
+#define HPRE_WAIT_DELAY	1000
 
 struct hpre_ctrl;
 

drivers/crypto/hisilicon/hpre/hpre_main.c

@@ -1054,12 +1054,21 @@ static int hpre_sriov_configure(struct pci_dev *pdev, int num_vfs)
 }
 #endif
 
+static void hpre_remove_wait_delay(struct hpre *hpre)
+{
+	while (hisi_qm_frozen(&hpre->qm))
+		;
+	udelay(HPRE_WAIT_DELAY);
+}
+
 static void hpre_remove(struct pci_dev *pdev)
 {
 	struct hpre *hpre = pci_get_drvdata(pdev);
 	struct hisi_qm *qm = &hpre->qm;
 	int ret;
 
+	if (uacce_mode != UACCE_MODE_NOUACCE)
+		hpre_remove_wait_delay(hpre);
 	hpre_algs_unregister();
 	hpre_remove_from_list(hpre);