From acb4b992d8a13728044f430b47b9199aa45993e9 Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Mon, 7 Nov 2011 12:03:23 -0800 Subject: [PATCH] drm: remove some potentially dangerous DRM_ERRORs 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 Reviewed-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_crtc.c | 19 ++++--------------- 1 file changed, 4 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 1dfc28600751..255658906fcf 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -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; } -- 2.39.5