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drm/vmwgfx: reorder framebuffer init sequence 

vmwgfx has an oddity, when failing to reference the surface it'll
return 0, since that's what the successfull drm_framebuffer_init will
leave behind in ret. Fix this up by returning -EINVAL.

Split out from all the other driver updates due to the above tiny
semantic change. Shouldn't matter though since the reference grabbing
seemingly can't fail.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
hifive-unleashed-5.1
Daniel Vetter 2012-12-13 23:39:01 +01:00
parent c7d73f6a8a
commit 80f0b5aff8
1 changed files with 16 additions and 14 deletions
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30
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
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@ -681,14 +681,10 @@ static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
goto out_err1;
}
ret = drm_framebuffer_init(dev, &vfbs->base.base,
&vmw_framebuffer_surface_funcs);
if (ret)
goto out_err2;
if (!vmw_surface_reference(surface)) {
DRM_ERROR("failed to reference surface %p\n", surface);
goto out_err3;
ret = -EINVAL;
goto out_err2;
}
/* XXX get the first 3 from the surface info */
@ -707,10 +703,15 @@ static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
*out = &vfbs->base;
ret = drm_framebuffer_init(dev, &vfbs->base.base,
&vmw_framebuffer_surface_funcs);
if (ret)
goto out_err3;
return 0;
out_err3:
drm_framebuffer_cleanup(&vfbs->base.base);
vmw_surface_unreference(&surface);
out_err2:
kfree(vfbs);
out_err1:
@ -1053,14 +1054,10 @@ static int vmw_kms_new_framebuffer_dmabuf(struct vmw_private *dev_priv,
goto out_err1;
}
ret = drm_framebuffer_init(dev, &vfbd->base.base,
&vmw_framebuffer_dmabuf_funcs);
if (ret)
goto out_err2;
if (!vmw_dmabuf_reference(dmabuf)) {
DRM_ERROR("failed to reference dmabuf %p\n", dmabuf);
goto out_err3;
ret = -EINVAL;
goto out_err2;
}
vfbd->base.base.bits_per_pixel = mode_cmd->bpp;
@ -1077,10 +1074,15 @@ static int vmw_kms_new_framebuffer_dmabuf(struct vmw_private *dev_priv,
vfbd->base.user_handle = mode_cmd->handle;
*out = &vfbd->base;
ret = drm_framebuffer_init(dev, &vfbd->base.base,
&vmw_framebuffer_dmabuf_funcs);
if (ret)
goto out_err3;
return 0;
out_err3:
drm_framebuffer_cleanup(&vfbd->base.base);
vmw_dmabuf_unreference(&dmabuf);
out_err2:
kfree(vfbd);
out_err1: