[PATCH AUTOSEL 6.10 088/121] drm/amd/display: Check UnboundedRequestEnabled's value

Sasha Levin
2024-08-01T00:16:47Z

From: Alex Hung <alex.hung@amd.com>

[ Upstream commit a7b38c7852093385d0605aa3c8a2efd6edd1edfd ]

CalculateSwathAndDETConfiguration_params_st's UnboundedRequestEnabled
is a pointer (i.e. dml_bool_t *UnboundedRequestEnabled), and thus
if (p->UnboundedRequestEnabled) checks its address, not bool value.

This fixes 1 REVERSE_INULL issue reported by Coverity.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c b/drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c
index 3e919f5c00ca2..fee1df342f122 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c
+++ b/drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c
@@ -4282,7 +4282,7 @@ static void CalculateSwathAndDETConfiguration(struct display_mode_lib_scratch_st
}

*p->compbuf_reserved_space_64b = 2 * p->PixelChunkSizeInKByte * 1024 / 64;
- if (p->UnboundedRequestEnabled) {
+ if (*p->UnboundedRequestEnabled) {
*p->compbuf_reserved_space_64b = dml_max(*p->compbuf_reserved_space_64b,
(dml_float_t)(p->ROBBufferSizeInKByte * 1024/64)
- (dml_float_t)(RoundedUpSwathSizeBytesY[SurfaceDoingUnboundedRequest] * TTUFIFODEPTH / MAXIMUMCOMPRESSION/64));
--
2.43.0