From: Daniel Vetter Date: Sat, 21 Jul 2012 14:47:09 +0000 (+0200) Subject: drm/i915: unbreak lastclose for failed driver init X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e8aeaee7b012f1cdb382765d17307445385aa87c;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git drm/i915: unbreak lastclose for failed driver init We now refuse to load on gen6+ if kms is not enabled: commit 26394d9251879231b85e6c8cf899fa43e75c68f1 Author: Daniel Vetter Date: Mon Mar 26 21:33:18 2012 +0200 drm/i915: refuse to load on gen6+ without kms Which results in the drm core calling our lastclose function to clean up the mess, but that one is neatly broken for such failure cases since kms has been introduced in commit 79e539453b34e35f39299a899d263b0a1f1670bd Author: Jesse Barnes Date: Fri Nov 7 14:24:08 2008 -0800 DRM: i915: add mode setting support Reported-and-tested-by: Paulo Zanoni Signed-Off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index f64ef4b723fd..9cf7dfe022b9 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1781,7 +1781,13 @@ void i915_driver_lastclose(struct drm_device * dev) { drm_i915_private_t *dev_priv = dev->dev_private; - if (!dev_priv || drm_core_check_feature(dev, DRIVER_MODESET)) { + /* On gen6+ we refuse to init without kms enabled, but then the drm core + * goes right around and calls lastclose. Check for this and don't clean + * up anything. */ + if (!dev_priv) + return; + + if (drm_core_check_feature(dev, DRIVER_MODESET)) { intel_fb_restore_mode(dev); vga_switcheroo_process_delayed_switch(); return;