diff --git a/drivers/net/wireless/wcnss/wcnss_wlan.c b/drivers/net/wireless/wcnss/wcnss_wlan.c
index 887bb72..5b33efa 100644
--- a/drivers/net/wireless/wcnss/wcnss_wlan.c
+++ b/drivers/net/wireless/wcnss/wcnss_wlan.c
@@ -1798,7 +1798,7 @@
 		smd_read(penv->smd_ch, NULL, len);
 		return;
 	}
-	if (len <= 0)
+	if (len < sizeof(struct smd_msg_hdr))
 		return;
 
 	rc = smd_read(penv->smd_ch, buf, sizeof(struct smd_msg_hdr));