[PATCH 6/7] drm/nouveau: fixup fbcon failure paths

[Maarten Lankhorst]

Add missing calls, and fix a leak from forgetting to call the unpin function.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst at canonical.com>
---
 drivers/gpu/drm/nouveau/nouveau_fbcon.c | 23 ++++++++++++++---------
 1 file changed, 14 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c 
b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
index b035317..ecbfe69 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
@@ -289,16 +289,13 @@ nouveau_fbcon_create(struct drm_fb_helper *helper,
        ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM);
        if (ret) {
                NV_ERROR(drm, "failed to pin fb: %d\n", ret);
-               nouveau_bo_ref(NULL, &nvbo);
-               goto out;
+               goto out_unref;
        }

        ret = nouveau_bo_map(nvbo);
        if (ret) {
                NV_ERROR(drm, "failed to map fb: %d\n", ret);
-               nouveau_bo_unpin(nvbo);
-               nouveau_bo_ref(NULL, &nvbo);
-               goto out;
+               goto out_unpin;
        }

        chan = nouveau_nofbaccel ? NULL : drm->channel;
@@ -316,13 +313,14 @@ nouveau_fbcon_create(struct drm_fb_helper *helper,
        info = framebuffer_alloc(0, &pdev->dev);
        if (!info) {
                ret = -ENOMEM;
-               goto out_unref;
+               goto out_unlock;
        }

        ret = fb_alloc_cmap(&info->cmap, 256, 0);
        if (ret) {
                ret = -ENOMEM;
-               goto out_unref;
+               framebuffer_release(info);
+               goto out_unlock;
        }

        info->par = fbcon;
@@ -337,7 +335,7 @@ nouveau_fbcon_create(struct drm_fb_helper *helper,
        fbcon->helper.fbdev = info;

        strcpy(info->fix.id, "nouveaufb");
-       if (nouveau_nofbaccel)
+       if (!chan)
                info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_DISABLED;
        else
                info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA |
@@ -383,8 +381,14 @@ nouveau_fbcon_create(struct drm_fb_helper *helper,
        vga_switcheroo_client_fb_set(dev->pdev, info);
        return 0;

-out_unref:
+out_unlock:
        mutex_unlock(&dev->struct_mutex);
+       if (chan)
+               nouveau_bo_vma_del(nvbo, &fbcon->nouveau_fb.vma);
+out_unpin:
+       nouveau_bo_unpin(nvbo);
+out_unref:
+       nouveau_bo_ref(NULL, &nvbo);
 out:
        return ret;
 }
@@ -413,6 +417,7 @@ nouveau_fbcon_destroy(struct drm_device *dev, struct 
nouveau_fbdev *fbcon)
        if (nouveau_fb->nvbo) {
                nouveau_bo_unmap(nouveau_fb->nvbo);
                nouveau_bo_vma_del(nouveau_fb->nvbo, &nouveau_fb->vma);
+               nouveau_bo_unpin(nouveau_fb->nvbo);
                drm_gem_object_unreference_unlocked(nouveau_fb->nvbo->gem);
                nouveau_fb->nvbo = NULL;
        }
-- 
1.8.2.2