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    Subject[PATCH 5.0 100/137] drm/rockchip: fix for mailbox read validation.
    Date
    [ 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 5a485489a1e23..6c8b14fb1d2f3 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


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