1 files changed, 9 insertions, 5 deletions

diff --git a/drivers/media/radio/wl128x/fmdrv_common.c b/drivers/media/radio/wl128x/fmdrv_common.c
index 3c8987af3772..053d51a5890a 100644
--- a/drivers/media/radio/wl128x/fmdrv_common.c
+++ b/drivers/media/radio/wl128x/fmdrv_common.c
@@ -489,7 +489,8 @@ int fmc_send_cmd(struct fmdev *fmdev, u8 fm_op, u16 type, void *payload,
 		return -EIO;
 	}
 	/* Send response data to caller */
-	if (response != NULL && response_len != NULL && evt_hdr->dlen) {
+	if (response != NULL && response_len != NULL && evt_hdr->dlen &&
+	    evt_hdr->dlen <= payload_len) {
 		/* Skip header info and copy only response data */
 		skb_pull(skb, sizeof(struct fm_event_msg_hdr));
 		memcpy(response, skb->data, evt_hdr->dlen);
@@ -583,6 +584,8 @@ static void fm_irq_handle_flag_getcmd_resp(struct fmdev *fmdev)
 		return;
 
 	fm_evt_hdr = (void *)skb->data;
+	if (fm_evt_hdr->dlen > sizeof(fmdev->irq_info.flag))
+		return;
 
 	/* Skip header info and copy only response data */
 	skb_pull(skb, sizeof(struct fm_event_msg_hdr));
@@ -1268,8 +1271,9 @@ static int fm_download_firmware(struct fmdev *fmdev, const u8 *fw_name)
 
 		switch (action->type) {
 		case ACTION_SEND_COMMAND:	/* Send */
-			if (fmc_send_cmd(fmdev, 0, 0, action->data,
-						action->size, NULL, NULL))
+			ret = fmc_send_cmd(fmdev, 0, 0, action->data,
+					   action->size, NULL, NULL);
+			if (ret)
 				goto rel_fw;
 
 			cmd_cnt++;
@@ -1308,7 +1312,7 @@ static int load_default_rx_configuration(struct fmdev *fmdev)
 static int fm_power_up(struct fmdev *fmdev, u8 mode)
 {
 	u16 payload;
-	__be16 asic_id, asic_ver;
+	__be16 asic_id = 0, asic_ver = 0;
 	int resp_len, ret;
 	u8 fw_name[50];
 
@@ -1520,7 +1524,7 @@ int fmc_prepare(struct fmdev *fmdev)
 		}
 
 		ret = 0;
-	} else if (ret == -1) {
+	} else if (ret < 0) {
 		fmerr("st_register failed %d\n", ret);
 		return -EAGAIN;
 	}