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Diffstat (limited to 'linux/context.c')
-rw-r--r--linux/context.c36
1 files changed, 23 insertions, 13 deletions
diff --git a/linux/context.c b/linux/context.c
index ca491094..933fd0cd 100644
--- a/linux/context.c
+++ b/linux/context.c
@@ -129,19 +129,21 @@ int drm_resctx(struct inode *inode, struct file *filp, unsigned int cmd,
int i;
DRM_DEBUG("%d\n", DRM_RESERVED_CONTEXTS);
- copy_from_user_ret(&res, (drm_ctx_res_t *)arg, sizeof(res), -EFAULT);
+ if (copy_from_user(&res, (drm_ctx_res_t *)arg, sizeof(res)))
+ return -EFAULT;
if (res.count >= DRM_RESERVED_CONTEXTS) {
memset(&ctx, 0, sizeof(ctx));
for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) {
ctx.handle = i;
- copy_to_user_ret(&res.contexts[i],
+ if (copy_to_user(&res.contexts[i],
&i,
- sizeof(i),
- -EFAULT);
+ sizeof(i)))
+ return -EFAULT;
}
}
res.count = DRM_RESERVED_CONTEXTS;
- copy_to_user_ret((drm_ctx_res_t *)arg, &res, sizeof(res), -EFAULT);
+ if (copy_to_user((drm_ctx_res_t *)arg, &res, sizeof(res)))
+ return -EFAULT;
return 0;
}
@@ -153,7 +155,8 @@ int drm_addctx(struct inode *inode, struct file *filp, unsigned int cmd,
drm_device_t *dev = priv->dev;
drm_ctx_t ctx;
- copy_from_user_ret(&ctx, (drm_ctx_t *)arg, sizeof(ctx), -EFAULT);
+ if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
+ return -EFAULT;
if ((ctx.handle = drm_alloc_queue(dev)) == DRM_KERNEL_CONTEXT) {
/* Init kernel's context and get a new one. */
drm_init_queue(dev, dev->queuelist[ctx.handle], &ctx);
@@ -161,7 +164,8 @@ int drm_addctx(struct inode *inode, struct file *filp, unsigned int cmd,
}
drm_init_queue(dev, dev->queuelist[ctx.handle], &ctx);
DRM_DEBUG("%d\n", ctx.handle);
- copy_to_user_ret((drm_ctx_t *)arg, &ctx, sizeof(ctx), -EFAULT);
+ if (copy_to_user((drm_ctx_t *)arg, &ctx, sizeof(ctx)))
+ return -EFAULT;
return 0;
}
@@ -173,7 +177,8 @@ int drm_modctx(struct inode *inode, struct file *filp, unsigned int cmd,
drm_ctx_t ctx;
drm_queue_t *q;
- copy_from_user_ret(&ctx, (drm_ctx_t *)arg, sizeof(ctx), -EFAULT);
+ if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
+ return -EFAULT;
DRM_DEBUG("%d\n", ctx.handle);
@@ -206,7 +211,8 @@ int drm_getctx(struct inode *inode, struct file *filp, unsigned int cmd,
drm_ctx_t ctx;
drm_queue_t *q;
- copy_from_user_ret(&ctx, (drm_ctx_t *)arg, sizeof(ctx), -EFAULT);
+ if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
+ return -EFAULT;
DRM_DEBUG("%d\n", ctx.handle);
@@ -223,7 +229,8 @@ int drm_getctx(struct inode *inode, struct file *filp, unsigned int cmd,
ctx.flags = q->flags;
atomic_dec(&q->use_count);
- copy_to_user_ret((drm_ctx_t *)arg, &ctx, sizeof(ctx), -EFAULT);
+ if (copy_to_user((drm_ctx_t *)arg, &ctx, sizeof(ctx)))
+ return -EFAULT;
return 0;
}
@@ -235,7 +242,8 @@ int drm_switchctx(struct inode *inode, struct file *filp, unsigned int cmd,
drm_device_t *dev = priv->dev;
drm_ctx_t ctx;
- copy_from_user_ret(&ctx, (drm_ctx_t *)arg, sizeof(ctx), -EFAULT);
+ if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
+ return -EFAULT;
DRM_DEBUG("%d\n", ctx.handle);
return drm_context_switch(dev, dev->last_context, ctx.handle);
}
@@ -247,7 +255,8 @@ int drm_newctx(struct inode *inode, struct file *filp, unsigned int cmd,
drm_device_t *dev = priv->dev;
drm_ctx_t ctx;
- copy_from_user_ret(&ctx, (drm_ctx_t *)arg, sizeof(ctx), -EFAULT);
+ if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
+ return -EFAULT;
DRM_DEBUG("%d\n", ctx.handle);
drm_context_switch_complete(dev, ctx.handle);
@@ -263,7 +272,8 @@ int drm_rmctx(struct inode *inode, struct file *filp, unsigned int cmd,
drm_queue_t *q;
drm_buf_t *buf;
- copy_from_user_ret(&ctx, (drm_ctx_t *)arg, sizeof(ctx), -EFAULT);
+ if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
+ return -EFAULT;
DRM_DEBUG("%d\n", ctx.handle);
if (ctx.handle >= dev->queue_count) return -EINVAL;