From: Oleh Kravchenko <oleg@xxxxxxxxxx>
[ Upstream commit 6c5da8031a3abfad259190d35f83d89568b72ee2 ]
Internal Master 3 Bus can send and receive only 4 bytes per time.
Signed-off-by: Oleh Kravchenko <oleg@xxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
---
drivers/media/usb/cx231xx/cx231xx-core.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/media/usb/cx231xx/cx231xx-core.c b/drivers/media/usb/cx231xx/cx231xx-core.c
index 180103e48036..6ec0ac8a737e 100644
--- a/drivers/media/usb/cx231xx/cx231xx-core.c
+++ b/drivers/media/usb/cx231xx/cx231xx-core.c
@@ -365,7 +365,12 @@ int cx231xx_send_vendor_cmd(struct cx231xx *dev,
*/
if ((ven_req->wLength > 4) && ((ven_req->bRequest == 0x4) ||
(ven_req->bRequest == 0x5) ||
- (ven_req->bRequest == 0x6))) {
+ (ven_req->bRequest == 0x6) ||
+
+ /* Internal Master 3 Bus can send
+ * and receive only 4 bytes per time
+ */
+ (ven_req->bRequest == 0x2))) {
unsend_size = 0;
pdata = ven_req->pBuff;
--
2.11.0