[PATCH AUTOSEL 6.10 016/121] drm/amd/display: Add missing NULL pointer check within dpcd_extend_address_range

Sasha Levin
2024-08-01T00:10:04Z

From: Hersen Wu <hersenxs.wu@amd.com>

[ Upstream commit 5524fa301ba649f8cf00848f91468e0ba7e4f24c ]

[Why & How]
ASSERT if return NULL from kcalloc.

Reviewed-by: Alex Hung <alex.hung@amd.com>
Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Hersen Wu <hersenxs.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@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/link/protocols/link_dpcd.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dpcd.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dpcd.c
index a72c898b64fab..584b9295a12af 100644
--- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dpcd.c
+++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dpcd.c
@@ -165,6 +165,7 @@ static void dpcd_extend_address_range(
*out_address = new_addr_range.start;
*out_size = ADDRESS_RANGE_SIZE(new_addr_range.start, new_addr_range.end);
*out_data = kcalloc(*out_size, sizeof(**out_data), GFP_KERNEL);
+ ASSERT(*out_data);
}
}

--
2.43.0