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drm/i915: Use a DRM-managed action to release the PCI bridge device

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As we start supporting multiple uncore structures in future patches, the
MMIO cleanup (which may also get called mid-init if there's a failure)
will become more complicated.  Moving to DRM-managed actions will help
keep things simple.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220906234934.3655440-8-matthew.d.roper@intel.com
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
This commit is contained in:
Matt Roper 2022-09-06 16:49:27 -07:00 committed by Joonas Lahtinen
parent 4ecd56fdad
commit 6438452de4
1 changed files with 9 additions and 3 deletions
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12
drivers/gpu/drm/i915/i915_driver.c
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@ -105,6 +105,12 @@ static const char irst_name[] = "INT3392";
static const struct drm_driver i915_drm_driver;
static void i915_release_bridge_dev(struct drm_device *dev,
void *bridge)
{
pci_dev_put(bridge);
}
static int i915_get_bridge_dev(struct drm_i915_private *dev_priv)
{
int domain = pci_domain_nr(to_pci_dev(dev_priv->drm.dev)->bus);
@ -115,7 +121,9 @@ static int i915_get_bridge_dev(struct drm_i915_private *dev_priv)
drm_err(&dev_priv->drm, "bridge device not found\n");
return -EIO;
}
return 0;
return drmm_add_action_or_reset(&dev_priv->drm, i915_release_bridge_dev,
dev_priv->bridge_dev);
}
/* Allocate space for the MCH regs if needed, return nonzero on error */
@ -452,7 +460,6 @@ static int i915_driver_mmio_probe(struct drm_i915_private *dev_priv)
err_uncore:
intel_teardown_mchbar(dev_priv);
intel_uncore_fini_mmio(&dev_priv->uncore);
pci_dev_put(dev_priv->bridge_dev);
return ret;
}
@ -465,7 +472,6 @@ static void i915_driver_mmio_release(struct drm_i915_private *dev_priv)
{
intel_teardown_mchbar(dev_priv);
intel_uncore_fini_mmio(&dev_priv->uncore);
pci_dev_put(dev_priv->bridge_dev);
}
/**