[PATCH AUTOSEL 4.14 82/95] drm/rockchip: fix for mailbox read validation.

Sasha Levin
2019-05-07T05:41:04Z

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-email-dkos@cadence.com
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];
--
2.20.1