From: Andi Shyti Date: Tue, 2 Oct 2018 09:20:47 +0000 (+0300) Subject: drm/i915: fix wrong error number report X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=2ddcc982bdc51ad31bf5aa86ea02b3166cadd32e;p=openwrt%2Fstaging%2Fblogic.git drm/i915: fix wrong error number report During driver load it's considered that the i915_driver_create() function fails only in case of insufficient memory. Indeed, in case of failure of i915_driver_create(), the load function returns indiscriminately -ENOMEM ignoring the real cause of failure. In i915_driver_create() get the consistent error value from drm_dev_init() and embed it in the pointer return value. Signed-off-by: Andi Shyti Reviewed-by: Chris Wilson Signed-off-by: Chris Wilson Link: https://patchwork.freedesktop.org/patch/msgid/20181002092047.14705-1-andi.shyti@intel.com --- diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 1b028f429e92..193023427b40 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -1627,14 +1627,16 @@ i915_driver_create(struct pci_dev *pdev, const struct pci_device_id *ent) (struct intel_device_info *)ent->driver_data; struct intel_device_info *device_info; struct drm_i915_private *i915; + int err; i915 = kzalloc(sizeof(*i915), GFP_KERNEL); if (!i915) - return NULL; + return ERR_PTR(-ENOMEM); - if (drm_dev_init(&i915->drm, &driver, &pdev->dev)) { + err = drm_dev_init(&i915->drm, &driver, &pdev->dev); + if (err) { kfree(i915); - return NULL; + return ERR_PTR(err); } i915->drm.pdev = pdev; @@ -1683,8 +1685,8 @@ int i915_driver_load(struct pci_dev *pdev, const struct pci_device_id *ent) int ret; dev_priv = i915_driver_create(pdev, ent); - if (!dev_priv) - return -ENOMEM; + if (IS_ERR(dev_priv)) + return PTR_ERR(dev_priv); /* Disable nuclear pageflip by default on pre-ILK */ if (!i915_modparams.nuclear_pageflip && match_info->gen < 5)