From: Damian Kos dkos@cadence.com

[ Upstream commit e4056bbb6719fe713bfc4030ac78e8e97ddf7574 ]

This is basically the same fix as in commit fa68d4f8476b ("drm/rockchip: fix for mailbox read size") but for cdn_dp_mailbox_validate_receive function.

See patchwork.kernel.org/patch/10671981/ for details.

Signed-off-by: Damian Kos dkos@cadence.com Signed-off-by: Heiko Stuebner heiko@sntech.de Link: https://patchwork.freedesktop.org/patch/msgid/1542640463-18332-1-git-send-em... Signed-off-by: Sasha Levin alexander.levin@microsoft.com --- drivers/gpu/drm/rockchip/cdn-dp-reg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/rockchip/cdn-dp-reg.c b/drivers/gpu/drm/rockchip/cdn-dp-reg.c index 0ed7e91471f6..4df201d21f27 100644 --- a/drivers/gpu/drm/rockchip/cdn-dp-reg.c +++ b/drivers/gpu/drm/rockchip/cdn-dp-reg.c @@ -113,7 +113,7 @@ static int cdp_dp_mailbox_write(struct cdn_dp_device *dp, u8 val)

static int cdn_dp_mailbox_validate_receive(struct cdn_dp_device *dp, u8 module_id, u8 opcode, - u8 req_size) + u16 req_size) { u32 mbox_size, i; u8 header[4];