Check for alloc_apertures() memory allocation failure, and propagate an error code in case the allocation failed.
Signed-off-by: Tommi Rantala tt.rantala@gmail.com --- 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 101e423..dcd1a8c 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); }