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| author | Antonino A. Daplas <adaplas@gmail.com> | 2005-12-19 15:11:40 +0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-12-20 09:27:15 -0800 |
| commit | 4b3760ce3d448d4af3036cd6c650d651a16ee02d (patch) | |
| tree | 369f5680fad714f215f7b96b7b62975d55c55424 /drivers | |
| parent | 6ee7fb7e363aa8828b3920422416707c79f39007 (diff) | |
| download | linux-4b3760ce3d448d4af3036cd6c650d651a16ee02d.tar.gz linux-4b3760ce3d448d4af3036cd6c650d651a16ee02d.tar.bz2 linux-4b3760ce3d448d4af3036cd6c650d651a16ee02d.zip | |
[PATCH] intelfb: Fix freeing of nonexistent resource
Fix intelfb trying to free a non-existent resource in its error path.
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/intelfb/intelfb.h | 5 | ||||
| -rw-r--r-- | drivers/video/intelfb/intelfbdrv.c | 9 |
2 files changed, 12 insertions, 2 deletions
diff --git a/drivers/video/intelfb/intelfb.h b/drivers/video/intelfb/intelfb.h index f077ca34faba..da29d007f215 100644 --- a/drivers/video/intelfb/intelfb.h +++ b/drivers/video/intelfb/intelfb.h @@ -41,6 +41,10 @@ /*** hw-related values ***/ +/* Resource Allocation */ +#define INTELFB_FB_ACQUIRED 1 +#define INTELFB_MMIO_ACQUIRED 2 + /* PCI ids for supported devices */ #define PCI_DEVICE_ID_INTEL_830M 0x3577 #define PCI_DEVICE_ID_INTEL_845G 0x2562 @@ -257,6 +261,7 @@ struct intelfb_info { int hwcursor; int fixed_mode; int ring_active; + int flag; /* hw cursor */ int cursor_on; diff --git a/drivers/video/intelfb/intelfbdrv.c b/drivers/video/intelfb/intelfbdrv.c index 427689e584da..ac8d6617095e 100644 --- a/drivers/video/intelfb/intelfbdrv.c +++ b/drivers/video/intelfb/intelfbdrv.c @@ -473,9 +473,9 @@ cleanup(struct intelfb_info *dinfo) if (dinfo->aperture.virtual) iounmap((void __iomem *)dinfo->aperture.virtual); - if (dinfo->mmio_base_phys) + if (dinfo->flag & INTELFB_MMIO_ACQUIRED) release_mem_region(dinfo->mmio_base_phys, INTEL_REG_SIZE); - if (dinfo->aperture.physical) + if (dinfo->flag & INTELFB_FB_ACQUIRED) release_mem_region(dinfo->aperture.physical, dinfo->aperture.size); framebuffer_release(dinfo->info); @@ -572,6 +572,9 @@ intelfb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent) cleanup(dinfo); return -ENODEV; } + + dinfo->flag |= INTELFB_FB_ACQUIRED; + if (!request_mem_region(dinfo->mmio_base_phys, INTEL_REG_SIZE, INTELFB_MODULE_NAME)) { @@ -580,6 +583,8 @@ intelfb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent) return -ENODEV; } + dinfo->flag |= INTELFB_MMIO_ACQUIRED; + /* Get the chipset info. */ dinfo->pci_chipset = pdev->device; |