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drm/rockchip: fix for mailbox read validation.
[ Upstream commite4056bbb67
] This is basically the same fix as in commitfa68d4f847
("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 <sashal@kernel.org>
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@ -113,7 +113,7 @@ static int cdp_dp_mailbox_write(struct cdn_dp_device *dp, u8 val)
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static int cdn_dp_mailbox_validate_receive(struct cdn_dp_device *dp,
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u8 module_id, u8 opcode,
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u8 req_size)
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u16 req_size)
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{
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u32 mbox_size, i;
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u8 header[4];
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