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drm: xlnx: zynqmp: fix a memset in zynqmp_dp_train()

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[ Upstream commit 5842ab76bb ]

The dp->train_set[] for this driver is only two characters, not four so
this memsets too much.  Fortunately, this ends up corrupting a struct
hole and not anything important.

Fixes: d76271d226 ("drm: xlnx: DRM/KMS driver for Xilinx ZynqMP DisplayPort Subsystem")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/YGLwCBMotnrKZu6P@mwanda
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dan Carpenter 2021-03-30 12:31:52 +03:00 • committed by Greg Kroah-Hartman
commit a6596d71a6
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/xlnx/zynqmp_dp.c
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@ -866,7 +866,7 @@ static int zynqmp_dp_train(struct zynqmp_dp *dp)
return ret;
zynqmp_dp_write(dp, ZYNQMP_DP_SCRAMBLING_DISABLE, 1);
memset(dp->train_set, 0, 4);
memset(dp->train_set, 0, sizeof(dp->train_set));
ret = zynqmp_dp_link_train_cr(dp);
if (ret)
return ret;