diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c
index b8a07d35973ad35bf5669d15f09c90dd29559c7a..ca51411e4a4c7a3386452b7c18210ee9f55e4535 100644
--- a/drivers/net/wireless/marvell/mwifiex/pcie.c
+++ b/drivers/net/wireless/marvell/mwifiex/pcie.c
@@ -442,7 +442,7 @@ static void mwifiex_delay_for_sleep_cookie(struct mwifiex_adapter *adapter,
 
 	for (count = 0; count < max_delay_loop_cnt; count++) {
 		buffer = card->cmdrsp_buf->data - INTF_HEADER_LEN;
-		sleep_cookie = *(u32 *)buffer;
+		sleep_cookie = READ_ONCE(*(u32 *)buffer);
 
 		if (sleep_cookie == MWIFIEX_DEF_SLEEP_COOKIE) {
 			mwifiex_dbg(adapter, INFO,