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[cairo-ps-surface] Check error status before potential illegal dereference.

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After acquiring the source image, check for the error status to ensure
that we do not attempt to deference an invalid surface.
This commit is contained in:
Chris Wilson 2008-03-31 10:55:39 +01:00
parent 767add1ee3
commit ba2e82d138
1 changed files with 7 additions and 1 deletions
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8
src/cairo-ps-surface.c
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@ -2142,17 +2142,23 @@ _cairo_ps_surface_acquire_surface (cairo_ps_surface_t *surface,
cairo_rectangle_int_t pattern_extents;
status = _cairo_surface_get_extents (meta_surface, &pattern_extents);
if (status)
return status;
*width = pattern_extents.width;
*height = pattern_extents.height;
} else {
status = _cairo_surface_acquire_source_image (pattern->surface,
&surface->image,
&surface->image_extra);
if (status)
return status;
*width = surface->image->width;
*height = surface->image->height;
}
return status;
return CAIRO_STATUS_SUCCESS;
}
static cairo_status_t