diff options
Diffstat (limited to 'drivers/gpu/drm/r128/r128_state.c')
| -rw-r--r-- | drivers/gpu/drm/r128/r128_state.c | 66 |
1 files changed, 22 insertions, 44 deletions
diff --git a/drivers/gpu/drm/r128/r128_state.c b/drivers/gpu/drm/r128/r128_state.c index 01dd9aef9f0..e806dacd452 100644 --- a/drivers/gpu/drm/r128/r128_state.c +++ b/drivers/gpu/drm/r128/r128_state.c @@ -895,31 +895,22 @@ static int r128_cce_dispatch_write_span(struct drm_device *dev, if (count > 4096 || count <= 0) return -EMSGSIZE; - if (DRM_COPY_FROM_USER(&x, depth->x, sizeof(x))) + if (copy_from_user(&x, depth->x, sizeof(x))) return -EFAULT; - if (DRM_COPY_FROM_USER(&y, depth->y, sizeof(y))) + if (copy_from_user(&y, depth->y, sizeof(y))) return -EFAULT; buffer_size = depth->n * sizeof(u32); - buffer = kmalloc(buffer_size, GFP_KERNEL); - if (buffer == NULL) - return -ENOMEM; - if (DRM_COPY_FROM_USER(buffer, depth->buffer, buffer_size)) { - kfree(buffer); - return -EFAULT; - } + buffer = memdup_user(depth->buffer, buffer_size); + if (IS_ERR(buffer)) + return PTR_ERR(buffer); mask_size = depth->n * sizeof(u8); if (depth->mask) { - mask = kmalloc(mask_size, GFP_KERNEL); - if (mask == NULL) { + mask = memdup_user(depth->mask, mask_size); + if (IS_ERR(mask)) { kfree(buffer); - return -ENOMEM; - } - if (DRM_COPY_FROM_USER(mask, depth->mask, mask_size)) { - kfree(buffer); - kfree(mask); - return -EFAULT; + return PTR_ERR(mask); } for (i = 0; i < count; i++, x++) { @@ -999,46 +990,33 @@ static int r128_cce_dispatch_write_pixels(struct drm_device *dev, kfree(x); return -ENOMEM; } - if (DRM_COPY_FROM_USER(x, depth->x, xbuf_size)) { + if (copy_from_user(x, depth->x, xbuf_size)) { kfree(x); kfree(y); return -EFAULT; } - if (DRM_COPY_FROM_USER(y, depth->y, xbuf_size)) { + if (copy_from_user(y, depth->y, xbuf_size)) { kfree(x); kfree(y); return -EFAULT; } buffer_size = depth->n * sizeof(u32); - buffer = kmalloc(buffer_size, GFP_KERNEL); - if (buffer == NULL) { - kfree(x); - kfree(y); - return -ENOMEM; - } - if (DRM_COPY_FROM_USER(buffer, depth->buffer, buffer_size)) { + buffer = memdup_user(depth->buffer, buffer_size); + if (IS_ERR(buffer)) { kfree(x); kfree(y); - kfree(buffer); - return -EFAULT; + return PTR_ERR(buffer); } if (depth->mask) { mask_size = depth->n * sizeof(u8); - mask = kmalloc(mask_size, GFP_KERNEL); - if (mask == NULL) { - kfree(x); - kfree(y); - kfree(buffer); - return -ENOMEM; - } - if (DRM_COPY_FROM_USER(mask, depth->mask, mask_size)) { + mask = memdup_user(depth->mask, mask_size); + if (IS_ERR(mask)) { kfree(x); kfree(y); kfree(buffer); - kfree(mask); - return -EFAULT; + return PTR_ERR(mask); } for (i = 0; i < count; i++) { @@ -1107,9 +1085,9 @@ static int r128_cce_dispatch_read_span(struct drm_device *dev, if (count > 4096 || count <= 0) return -EMSGSIZE; - if (DRM_COPY_FROM_USER(&x, depth->x, sizeof(x))) + if (copy_from_user(&x, depth->x, sizeof(x))) return -EFAULT; - if (DRM_COPY_FROM_USER(&y, depth->y, sizeof(y))) + if (copy_from_user(&y, depth->y, sizeof(y))) return -EFAULT; BEGIN_RING(7); @@ -1162,12 +1140,12 @@ static int r128_cce_dispatch_read_pixels(struct drm_device *dev, kfree(x); return -ENOMEM; } - if (DRM_COPY_FROM_USER(x, depth->x, xbuf_size)) { + if (copy_from_user(x, depth->x, xbuf_size)) { kfree(x); kfree(y); return -EFAULT; } - if (DRM_COPY_FROM_USER(y, depth->y, ybuf_size)) { + if (copy_from_user(y, depth->y, ybuf_size)) { kfree(x); kfree(y); return -EFAULT; @@ -1524,7 +1502,7 @@ static int r128_cce_stipple(struct drm_device *dev, void *data, struct drm_file DEV_INIT_TEST_WITH_RETURN(dev_priv); - if (DRM_COPY_FROM_USER(&mask, stipple->mask, 32 * sizeof(u32))) + if (copy_from_user(&mask, stipple->mask, 32 * sizeof(u32))) return -EFAULT; RING_SPACE_TEST_WITH_RETURN(dev_priv); @@ -1622,7 +1600,7 @@ static int r128_getparam(struct drm_device *dev, void *data, struct drm_file *fi return -EINVAL; } - if (DRM_COPY_TO_USER(param->value, &value, sizeof(int))) { + if (copy_to_user(param->value, &value, sizeof(int))) { DRM_ERROR("copy_to_user\n"); return -EFAULT; } |