From: Dan Carpenter dan.carpenter@oracle.com
[ Upstream commit 5842ab76bbfadb37eaea91e53c1efe34ae504e4a ]
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: d76271d22694 ("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 --- drivers/gpu/drm/xlnx/zynqmp_dp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/xlnx/zynqmp_dp.c b/drivers/gpu/drm/xlnx/zynqmp_dp.c index 99158ee67d02..59d1fb017da0 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_dp.c +++ b/drivers/gpu/drm/xlnx/zynqmp_dp.c @@ -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;