drm/i915: Unpin the fb on error during construction.

If we fail whilst constructing the fb, then we need to unpin it as well.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>

diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c
index afd1217..b7f0ebe 100644 (file)
--- a/drivers/gpu/drm/i915/intel_fb.c
+++ b/drivers/gpu/drm/i915/intel_fb.c
@@ -473,7 +473,7 @@ static int intelfb_create(struct drm_device *dev, uint32_t fb_width,
        ret = intel_framebuffer_create(dev, &mode_cmd, &fb, fbo);
        if (ret) {
                DRM_ERROR("failed to allocate fb.\n");
-               goto out_unref;
+               goto out_unpin;
        }
 
        list_add(&fb->filp_head, &dev->mode_config.fb_kernel_list);
@@ -484,7 +484,7 @@ static int intelfb_create(struct drm_device *dev, uint32_t fb_width,
        info = framebuffer_alloc(sizeof(struct intelfb_par), device);
        if (!info) {
                ret = -ENOMEM;
-               goto out_unref;
+               goto out_unpin;
        }
 
        par = info->par;
@@ -513,7 +513,7 @@ static int intelfb_create(struct drm_device *dev, uint32_t fb_width,
                                       size);
        if (!info->screen_base) {
                ret = -ENOSPC;
-               goto out_unref;
+               goto out_unpin;
        }
        info->screen_size = size;
 
@@ -608,6 +608,8 @@ static int intelfb_create(struct drm_device *dev, uint32_t fb_width,
        mutex_unlock(&dev->struct_mutex);
        return 0;
 
+out_unpin:
+       i915_gem_object_unpin(fbo);
 out_unref:
        drm_gem_object_unreference(fbo);
        mutex_unlock(&dev->struct_mutex);