linux-kernel - [PATCH] drm/i810: make i810_flush

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Date:   Thu, 10 Sep 2020 22:06:10 +0800
From:   Jason Yan <yanaijie@...wei.com>
To:     <airlied@...ux.ie>, <daniel@...ll.ch>,
        <dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>
CC:     Jason Yan <yanaijie@...wei.com>, Hulk Robot <hulkci@...wei.com>
Subject: [PATCH] drm/i810: make i810_flush_queue() return void

This function always return '0' and no callers use the return value. So
make it a void function.

This eliminates the following coccicheck warning:

drivers/gpu/drm/i810/i810_dma.c:860:8-11: Unneeded variable: "ret".
Return "0" on line 885

Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Jason Yan <yanaijie@...wei.com>
---
 drivers/gpu/drm/i810/i810_dma.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i810/i810_dma.c b/drivers/gpu/drm/i810/i810_dma.c
index 303c2d483c6e..88250860f8e4 100644
--- a/drivers/gpu/drm/i810/i810_dma.c
+++ b/drivers/gpu/drm/i810/i810_dma.c
@@ -853,11 +853,11 @@ static void i810_dma_quiescent(struct drm_device *dev)
 	i810_wait_ring(dev, dev_priv->ring.Size - 8);
 }
 
-static int i810_flush_queue(struct drm_device *dev)
+static void i810_flush_queue(struct drm_device *dev)
 {
 	drm_i810_private_t *dev_priv = dev->dev_private;
 	struct drm_device_dma *dma = dev->dma;
-	int i, ret = 0;
+	int i;
 	RING_LOCALS;
 
 	i810_kernel_lost_context(dev);
@@ -882,7 +882,7 @@ static int i810_flush_queue(struct drm_device *dev)
 			DRM_DEBUG("still on client\n");
 	}
 
-	return ret;
+	return;
 }
 
 /* Must be called with the lock held */
-- 
2.25.4