linux-kernel - [PATCH] drm/radeon/ni_dpm: remove redundant NULL check

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Date: Wed, 17 Jan 2024 06:45:14 -0800
From: Nikita Zhandarovich <n.zhandarovich@...tech.ru>
To: Alex Deucher <alexander.deucher@....com>
CC: Nikita Zhandarovich <n.zhandarovich@...tech.ru>,
	Christian König <christian.koenig@....com>, "Pan, Xinhui"
	<Xinhui.Pan@....com>, David Airlie <airlied@...il.com>, Daniel Vetter
	<daniel@...ll.ch>, <amd-gfx@...ts.freedesktop.org>,
	<dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
	<lvc-project@...uxtesting.org>
Subject: [PATCH] drm/radeon/ni_dpm: remove redundant NULL check

'leakage_table' will always be successfully initialized as a pointer
to '&rdev->pm.dpm.dyn_state.cac_leakage_table'.

Remove unnecessary check if only to silence static checkers.

Found by Linux Verification Center (linuxtesting.org) with static
analysis tool Svace.

Fixes: 69e0b57a91ad ("drm/radeon/kms: add dpm support for cayman (v5)")
Signed-off-by: Nikita Zhandarovich <n.zhandarovich@...tech.ru>
---
 drivers/gpu/drm/radeon/ni_dpm.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/gpu/drm/radeon/ni_dpm.c b/drivers/gpu/drm/radeon/ni_dpm.c
index 3e1c1a392fb7..e08559c44a5c 100644
--- a/drivers/gpu/drm/radeon/ni_dpm.c
+++ b/drivers/gpu/drm/radeon/ni_dpm.c
@@ -3103,9 +3103,6 @@ static int ni_init_simplified_leakage_table(struct radeon_device *rdev,
 	u32 smc_leakage, max_leakage = 0;
 	u32 scaling_factor;
 
-	if (!leakage_table)
-		return -EINVAL;
-
 	table_size = leakage_table->count;
 
 	if (eg_pi->vddc_voltage_table.count != table_size)