linux-kernel - [PATCH 5.8 142/464] drm/bridge: ti-sn65dsi86: Fix off-by-one error in clock choice

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20200817143840.616640797@linuxfoundation.org>
Date:   Mon, 17 Aug 2020 17:11:35 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Douglas Anderson <dianders@...omium.org>,
        Stephen Boyd <swboyd@...omium.org>,
        Rob Clark <robdclark@...il.com>,
        Sam Ravnborg <sam@...nborg.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.8 142/464] drm/bridge: ti-sn65dsi86: Fix off-by-one error in clock choice

From: Douglas Anderson <dianders@...omium.org>

[ Upstream commit fe3d7a35497c807d0dad0642afd87d6ba5b6fc86 ]

If the rate in our table is _equal_ to the rate we want then it's OK
to pick it.  It doesn't need to be greater than the one we want.

Fixes: a095f15c00e2 ("drm/bridge: add support for sn65dsi86 bridge driver")
Signed-off-by: Douglas Anderson <dianders@...omium.org>
Reviewed-by: Stephen Boyd <swboyd@...omium.org>
Reviewed-by: Rob Clark <robdclark@...il.com>
Signed-off-by: Sam Ravnborg <sam@...nborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200504213225.1.I21646c7c37ff63f52ae6cdccc9bc829fbc3d9424@changeid
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/bridge/ti-sn65dsi86.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
index d865cc2565bc0..8a0e34f2160af 100644
--- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
@@ -475,7 +475,7 @@ static int ti_sn_bridge_calc_min_dp_rate_idx(struct ti_sn_bridge *pdata)
 				   1000 * pdata->dp_lanes * DP_CLK_FUDGE_DEN);
 
 	for (i = 1; i < ARRAY_SIZE(ti_sn_bridge_dp_rate_lut) - 1; i++)
-		if (ti_sn_bridge_dp_rate_lut[i] > dp_rate_mhz)
+		if (ti_sn_bridge_dp_rate_lut[i] >= dp_rate_mhz)
 			break;
 
 	return i;
-- 
2.25.1