From 08de6e5b04c1950a5f396315e59d2476726e26d8 Mon Sep 17 00:00:00 2001
From: Erdi Chen <erdi@freedesktop.org>
Date: Mon, 30 Aug 2004 04:58:24 +0000
Subject: Fix copy_from_user return value ignored warning at via_dma.c:168.

---
 shared-core/via_dma.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'shared-core/via_dma.c')

diff --git a/shared-core/via_dma.c b/shared-core/via_dma.c
index 0121f794..83c14cf0 100644
--- a/shared-core/via_dma.c
+++ b/shared-core/via_dma.c
@@ -165,7 +165,9 @@ static int via_dispatch_cmdbuffer(drm_device_t *dev,
 	if (vb == NULL) {
 		return DRM_ERR(EAGAIN);
 	}
-	DRM_COPY_FROM_USER(vb, cmd->buf, cmd->size);
+	if (DRM_COPY_FROM_USER(vb, cmd->buf, cmd->size)) {
+		return DRM_ERR(EFAULT);
+	}
 	dev_priv->dma_low += cmd->size;
 	via_cmdbuf_pause(dev_priv);
 
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