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

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Message-Id: <20221123074437.1841014-1-zys.zljxml@gmail.com>
Date:   Wed, 23 Nov 2022 15:44:37 +0800
From:   zys.zljxml@...il.com
To:     alexander.deucher@....com, christian.koenig@....com,
        Xinhui.Pan@....com, airlied@...il.com, daniel@...ll.ch
Cc:     amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, Yushan Zhou <katrinzhou@...cent.com>
Subject: [PATCH] drm/amdgpu: remove redundant NULL check

From: Yushan Zhou <katrinzhou@...cent.com>

release_firmware() checks whether firmware pointer is NULL.
Remove the redundant NULL check in psp_sw_fini().

Signed-off-by: Yushan Zhou <katrinzhou@...cent.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 36 +++++++++++--------------
 1 file changed, 16 insertions(+), 20 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index effa7df3ddbf..77b966ab5439 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -484,26 +484,22 @@ static int psp_sw_fini(void *handle)
 	struct psp_gfx_cmd_resp *cmd = psp->cmd;
 
 	psp_memory_training_fini(psp);
-	if (psp->sos_fw) {
-		release_firmware(psp->sos_fw);
-		psp->sos_fw = NULL;
-	}
-	if (psp->asd_fw) {
-		release_firmware(psp->asd_fw);
-		psp->asd_fw = NULL;
-	}
-	if (psp->ta_fw) {
-		release_firmware(psp->ta_fw);
-		psp->ta_fw = NULL;
-	}
-	if (psp->cap_fw) {
-		release_firmware(psp->cap_fw);
-		psp->cap_fw = NULL;
-	}
-	if (psp->toc_fw) {
-		release_firmware(psp->toc_fw);
-		psp->toc_fw = NULL;
-	}
+
+	release_firmware(psp->sos_fw);
+	psp->sos_fw = NULL;
+
+	release_firmware(psp->asd_fw);
+	psp->asd_fw = NULL;
+
+	release_firmware(psp->ta_fw);
+	psp->ta_fw = NULL;
+
+	release_firmware(psp->cap_fw);
+	psp->cap_fw = NULL;
+
+	release_firmware(psp->toc_fw);
+	psp->toc_fw = NULL;
+
 	if (adev->ip_versions[MP0_HWIP][0] == IP_VERSION(11, 0, 0) ||
 	    adev->ip_versions[MP0_HWIP][0] == IP_VERSION(11, 0, 7))
 		psp_sysfs_fini(adev);
-- 
2.27.0