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31 lines
1.1 KiB
Diff
31 lines
1.1 KiB
Diff
From 09dfa5b8ba1a38050e4e95faab1cf07c6a509dad Mon Sep 17 00:00:00 2001
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From: Sandor Yu <Sandor.yu@nxp.com>
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Date: Fri, 19 Jun 2020 16:05:42 +0800
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Subject: [PATCH 06/49] LF-1512: drm: cdns mhdp: avoid potentially overflowing
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covert to unsigned 64 bits to avoid potentially overflowing.
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Report by Coverity ID 6652952 6652952.
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Signed-off-by: Sandor Yu <Sandor.yu@nxp.com>
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Reviewed-by: Fancy Fang <chen.fang@nxp.com>
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---
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drivers/gpu/drm/bridge/cadence/cdns-mhdp-common.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp-common.c b/drivers/gpu/drm/bridge/cadence/cdns-mhdp-common.c
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index 9c0a2668e494..890add9b7c67 100644
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--- a/drivers/gpu/drm/bridge/cadence/cdns-mhdp-common.c
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+++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp-common.c
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@@ -657,7 +657,7 @@ int cdns_mhdp_config_video(struct cdns_mhdp_device *mhdp)
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*/
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do {
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tu_size_reg += 2;
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- symbol = tu_size_reg * mode->clock * bit_per_pix;
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+ symbol = (u64) tu_size_reg * mode->clock * bit_per_pix;
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do_div(symbol, mhdp->dp.num_lanes * link_rate * 8);
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rem = do_div(symbol, 1000);
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if (tu_size_reg > 64) {
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--
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2.29.2
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