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| author | Tommi Rantala <tt.rantala@gmail.com> | 2012-11-09 09:19:35 +0000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2012-11-20 16:06:23 +1000 |
| commit | bfb82ff0ee1dd0d1eed45ee25aa601f4ea5c54ac (patch) | |
| tree | 9501354b485d137f8c58b4fb27f88dea9c3939f9 /drivers/gpu/drm/cirrus | |
| parent | 91926741ecd28dc246875a39a908c2f6aadb2542 (diff) | |
| download | linux-bfb82ff0ee1dd0d1eed45ee25aa601f4ea5c54ac.tar.gz linux-bfb82ff0ee1dd0d1eed45ee25aa601f4ea5c54ac.tar.xz | |
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 <tt.rantala@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/cirrus')
| -rw-r--r-- | drivers/gpu/drm/cirrus/cirrus_drv.c | 13 |
1 files 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); } |