From cce13ff7596985903ad924504562190a2c163a63 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Sun, 8 Aug 2010 13:36:38 +0100 Subject: [PATCH] drm: Propagate error code from fb_create() Change the interface to expect a PTR_ERR specifing the real error code as opposed to assuming a NULL return => -EINVAL. Just once the user may not be at fault! Signed-off-by: Chris Wilson Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_crtc.c | 4 ++-- drivers/gpu/drm/i915/intel_display.c | 6 +++--- drivers/gpu/drm/i915/intel_fb.c | 4 +++- drivers/gpu/drm/nouveau/nouveau_display.c | 6 +++--- drivers/gpu/drm/radeon/radeon_display.c | 7 +++---- drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 8 ++++---- 6 files changed, 18 insertions(+), 17 deletions(-) diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 4c68f76993d8..bdd0d903872a 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -1682,9 +1682,9 @@ int drm_mode_addfb(struct drm_device *dev, /* TODO setup destructor callback */ fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); - if (!fb) { + if (IS_ERR(fb)) { DRM_ERROR("could not create framebuffer\n"); - ret = -EINVAL; + ret = PTR_ERR(fb); goto out; } diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index ae1718549eec..ec8336a4b7de 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5312,18 +5312,18 @@ intel_user_framebuffer_create(struct drm_device *dev, obj = drm_gem_object_lookup(dev, filp, mode_cmd->handle); if (!obj) - return NULL; + return ERR_PTR(-ENOENT); intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); if (!intel_fb) - return NULL; + return ERR_PTR(-ENOMEM); ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj); if (ret) { drm_gem_object_unreference_unlocked(obj); kfree(intel_fb); - return NULL; + return ERR_PTR(ret); } return &intel_fb->base; diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c index 3e18c9e7729b..1d2d67ce4a84 100644 --- a/drivers/gpu/drm/i915/intel_fb.c +++ b/drivers/gpu/drm/i915/intel_fb.c @@ -119,7 +119,9 @@ static int intelfb_create(struct intel_fbdev *ifbdev, info->par = ifbdev; - intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, fbo); + ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, fbo); + if (ret) + goto out_unpin; fb = &ifbdev->ifb.base; diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index 74e6b4ed12c0..2e11fd65b4dd 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -84,16 +84,16 @@ nouveau_user_framebuffer_create(struct drm_device *dev, gem = drm_gem_object_lookup(dev, file_priv, mode_cmd->handle); if (!gem) - return NULL; + return ERR_PTR(-ENOENT); nouveau_fb = kzalloc(sizeof(struct nouveau_framebuffer), GFP_KERNEL); if (!nouveau_fb) - return NULL; + return ERR_PTR(-ENOMEM); ret = nouveau_framebuffer_init(dev, nouveau_fb, mode_cmd, nouveau_gem_object(gem)); if (ret) { drm_gem_object_unreference(gem); - return NULL; + return ERR_PTR(ret); } return &nouveau_fb->base; diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index d49a14891f83..6130ec9ed502 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -888,13 +888,12 @@ radeon_user_framebuffer_create(struct drm_device *dev, if (obj == NULL) { dev_err(&dev->pdev->dev, "No GEM object associated to handle 0x%08X, " "can't create framebuffer\n", mode_cmd->handle); - return NULL; + return ERR_PTR(-ENOENT); } radeon_fb = kzalloc(sizeof(*radeon_fb), GFP_KERNEL); - if (radeon_fb == NULL) { - return NULL; - } + if (radeon_fb == NULL) + return ERR_PTR(-ENOMEM); radeon_framebuffer_init(dev, radeon_fb, mode_cmd, obj); diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c index 437ac786277a..64d7f47df868 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c @@ -737,7 +737,7 @@ static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev, if (ret) { DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret); - return NULL; + return ERR_PTR(ret); } return &vfb->base; @@ -747,7 +747,7 @@ try_dmabuf: ret = vmw_user_dmabuf_lookup(tfile, mode_cmd->handle, &bo); if (ret) { DRM_ERROR("failed to find buffer: %i\n", ret); - return NULL; + return ERR_PTR(-ENOENT); } ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, bo, &vfb, @@ -758,7 +758,7 @@ try_dmabuf: if (ret) { DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret); - return NULL; + return ERR_PTR(ret); } return &vfb->base; @@ -768,7 +768,7 @@ err_not_scanout: /* vmw_user_surface_lookup takes one ref */ vmw_surface_unreference(&surface); - return NULL; + return ERR_PTR(-EINVAL); } static struct drm_mode_config_funcs vmw_kms_funcs = { -- 2.20.1