linux-kernel - [PATCH] drm/tegra: Remove redundant NULL check before kfree

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Message-Id: <20220602071909.278279-1-chi.minghao@zte.com.cn>
Date:   Thu,  2 Jun 2022 07:19:09 +0000
From:   cgel.zte@...il.com
To:     thierry.reding@...il.com
Cc:     airlied@...ux.ie, dri-devel@...ts.freedesktop.org,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
        Minghao Chi <chi.minghao@....com.cn>,
        Zeal Robot <zealci@....com.cn>
Subject: [PATCH] drm/tegra: Remove redundant NULL check before kfree

From: Minghao Chi <chi.minghao@....com.cn>

kfree on NULL pointer is a no-op.

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: Minghao Chi <chi.minghao@....com.cn>
---
 drivers/gpu/drm/tegra/submit.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/tegra/submit.c b/drivers/gpu/drm/tegra/submit.c
index 6d6dd8c35475..54ac31bc80f6 100644
--- a/drivers/gpu/drm/tegra/submit.c
+++ b/drivers/gpu/drm/tegra/submit.c
@@ -639,8 +639,7 @@ int tegra_drm_ioctl_channel_submit(struct drm_device *drm, void *data,
 		kfree(job_data->used_mappings);
 	}
 
-	if (job_data)
-		kfree(job_data);
+	kfree(job_data);
 put_bo:
 	gather_bo_put(&bo->base);
 unlock:
-- 
2.25.1