drm/i915/dsb: fix extra warning on error path handling
authorLucas De Marchi <lucas.demarchi@intel.com>
Mon, 11 Nov 2019 20:50:25 +0000 (12:50 -0800)
committerLucas De Marchi <lucas.demarchi@intel.com>
Mon, 18 Nov 2019 21:27:09 +0000 (13:27 -0800)
commit03cea61076f00ec6514aae88ec56f01117824cb7
tree97da12e1dbded889233c79d7330fd7638b5afc2d
parentac4eead3796579bdadd12e2fa99c4ddc920eda30
drm/i915/dsb: fix extra warning on error path handling

When we call intel_dsb_get(), the dsb initialization may fail for
various reasons. We already log the error message in that path, making
it unnecessary to trigger a warning that refcount == 0 when calling
intel_dsb_put().

So here we simplify the logic and do lazy shutdown: leaving the extra
refcount alive so when we call intel_dsb_put() we end up calling
i915_vma_unpin_and_release().

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191111205024.22853-3-lucas.demarchi@intel.com
drivers/gpu/drm/i915/display/intel_dsb.c