From bfb82ff0ee1dd0d1eed45ee25aa601f4ea5c54ac Mon Sep 17 00:00:00 2001 From: Tommi Rantala Date: Fri, 9 Nov 2012 09:19:35 +0000 Subject: [PATCH] drm/cirrus: check alloc_apertures() success in cirrus_kick_out_firmware_fb() Check for alloc_apertures() memory allocation failure, and propagate an error code in case the allocation failed. Signed-off-by: Tommi Rantala Signed-off-by: Dave Airlie --- drivers/gpu/drm/cirrus/cirrus_drv.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/cirrus/cirrus_drv.c b/drivers/gpu/drm/cirrus/cirrus_drv.c index 101e423c8991..dcd1a8c029eb 100644 --- a/drivers/gpu/drm/cirrus/cirrus_drv.c +++ b/drivers/gpu/drm/cirrus/cirrus_drv.c @@ -35,12 +35,15 @@ static DEFINE_PCI_DEVICE_TABLE(pciidlist) = { }; -static void cirrus_kick_out_firmware_fb(struct pci_dev *pdev) +static int cirrus_kick_out_firmware_fb(struct pci_dev *pdev) { struct apertures_struct *ap; bool primary = false; ap = alloc_apertures(1); + if (!ap) + return -ENOMEM; + ap->ranges[0].base = pci_resource_start(pdev, 0); ap->ranges[0].size = pci_resource_len(pdev, 0); @@ -49,12 +52,18 @@ static void cirrus_kick_out_firmware_fb(struct pci_dev *pdev) #endif remove_conflicting_framebuffers(ap, "cirrusdrmfb", primary); kfree(ap); + + return 0; } static int __devinit cirrus_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { - cirrus_kick_out_firmware_fb(pdev); + int ret; + + ret = cirrus_kick_out_firmware_fb(pdev); + if (ret) + return ret; return drm_get_pci_dev(pdev, ent, &driver); } -- 2.20.1