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Code Issues Releases Wiki Activity

drm: remove some potentially dangerous DRM_ERRORs

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Each of these error messages can be caused by a broken or malicious
userspace wanting to spam the dmesg with useless info.  They're really
not worthy of DRM_DEBUG statements either; those are generally only
useful during bringup of new hardware or versions, and ought to be
removed before going upstream anyway.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Jesse Barnes 2011-11-07 12:03:23 -08:00 committed by Dave Airlie
parent a62c93d5df
commit acb4b992d8
1 changed files with 4 additions and 15 deletions
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19
drivers/gpu/drm/drm_crtc.c
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@ -1877,10 +1877,8 @@ int drm_mode_cursor_ioctl(struct drm_device *dev,
if (!drm_core_check_feature(dev, DRIVER_MODESET))
return -EINVAL;
if (!req->flags) {
DRM_ERROR("no operation set\n");
if (!req->flags)
return -EINVAL;
}
mutex_lock(&dev->mode_config.mutex);
obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
@ -1893,7 +1891,6 @@ int drm_mode_cursor_ioctl(struct drm_device *dev,
if (req->flags & DRM_MODE_CURSOR_BO) {
if (!crtc->funcs->cursor_set) {
DRM_ERROR("crtc does not support cursor\n");
ret = -ENXIO;
goto out;
}
@ -1906,7 +1903,6 @@ int drm_mode_cursor_ioctl(struct drm_device *dev,
if (crtc->funcs->cursor_move) {
ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
} else {
DRM_ERROR("crtc does not support cursor\n");
ret = -EFAULT;
goto out;
}
@ -1989,14 +1985,11 @@ int drm_mode_addfb(struct drm_device *dev,
if (!drm_core_check_feature(dev, DRIVER_MODESET))
return -EINVAL;
if ((config->min_width > r.width) || (r.width > config->max_width)) {
DRM_ERROR("mode new framebuffer width not within limits\n");
if ((config->min_width > r.width) || (r.width > config->max_width))
return -EINVAL;
}
if ((config->min_height > r.height) || (r.height > config->max_height)) {
DRM_ERROR("mode new framebuffer height not within limits\n");
if ((config->min_height > r.height) || (r.height > config->max_height))
return -EINVAL;
}
mutex_lock(&dev->mode_config.mutex);
@ -2110,7 +2103,6 @@ int drm_mode_rmfb(struct drm_device *dev,
obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
/* TODO check that we really get a framebuffer back. */
if (!obj) {
DRM_ERROR("mode invalid framebuffer id\n");
ret = -EINVAL;
goto out;
}
@ -2121,7 +2113,6 @@ int drm_mode_rmfb(struct drm_device *dev,
found = 1;
if (!found) {
DRM_ERROR("tried to remove a fb that we didn't own\n");
ret = -EINVAL;
goto out;
}
@ -2168,7 +2159,6 @@ int drm_mode_getfb(struct drm_device *dev,
mutex_lock(&dev->mode_config.mutex);
obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
if (!obj) {
DRM_ERROR("invalid framebuffer id\n");
ret = -EINVAL;
goto out;
}
@ -2204,7 +2194,6 @@ int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
mutex_lock(&dev->mode_config.mutex);
obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
if (!obj) {
DRM_ERROR("invalid framebuffer id\n");
ret = -EINVAL;
goto out_err1;
}