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agp: balance ioremap checks 

patchset against 2.6.23-rc3.
corrects missing ioremap return checks and balancing on iounmap calls, integrated changes per list
recommendations on the original set of patches..

Signed-off-by: Scott Thompson <postfail <at> hushmail.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>
hifive-unleashed-5.1
Scott Thompson 2007-08-25 18:14:00 +10:00 committed by Dave Airlie
parent 32ddef98f2
commit 5bdbc7dc2c
6 changed files with 22 additions and 5 deletions
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2
drivers/char/agp/amd-k7-agp.c
View File

@ -223,6 +223,8 @@ static int amd_irongate_configure(void)
pci_read_config_dword(agp_bridge->dev, AMD_MMBASE, &temp);
temp = (temp & PCI_BASE_ADDRESS_MEM_MASK);
amd_irongate_private.registers = (volatile u8 __iomem *) ioremap(temp, 4096);
if (!amd_irongate_private.registers)
return -ENOMEM;
/* Write out the address of the gatt table */
writel(agp_bridge->gatt_bus_addr, amd_irongate_private.registers+AMD_ATTBASE);

3
drivers/char/agp/ati-agp.c
View File

@ -213,6 +213,9 @@ static int ati_configure(void)
temp = (temp & 0xfffff000);
ati_generic_private.registers = (volatile u8 __iomem *) ioremap(temp, 4096);
if (!ati_generic_private.registers)
return -ENOMEM;
if (is_r200())
pci_write_config_dword(agp_bridge->dev, ATI_RS100_IG_AGPMODE, 0x20000);
else

1
drivers/char/agp/hp-agp.c
View File

@ -221,6 +221,7 @@ hp_zx1_lba_init (u64 hpa)
if (cap != PCI_CAP_ID_AGP) {
printk(KERN_ERR PFX "Invalid capability ID 0x%02x at 0x%x\n",
cap, hp->lba_cap_offset);
iounmap(hp->lba_regs);
return -ENODEV;
}

4
drivers/char/agp/i460-agp.c
View File

@ -249,6 +249,10 @@ static int i460_create_gatt_table (struct agp_bridge_data *bridge)
num_entries = A_SIZE_8(temp)->num_entries;
i460.gatt = ioremap(INTEL_I460_ATTBASE, PAGE_SIZE << page_order);
if (!i460.gatt) {
printk(KERN_ERR PFX "ioremap failed\n");
return -ENOMEM;
}
/* These are no good, the should be removed from the agp_bridge strucure... */
agp_bridge->gatt_table_real = NULL;

14
drivers/char/agp/intel-agp.c
View File

@ -930,8 +930,10 @@ static int intel_i915_create_gatt_table(struct agp_bridge_data *bridge)
temp &= 0xfff80000;
intel_private.registers = ioremap(temp,128 * 4096);
if (!intel_private.registers)
if (!intel_private.registers) {
iounmap(intel_private.gtt);
return -ENOMEM;
}
temp = readl(intel_private.registers+I810_PGETBL_CTL) & 0xfffff000;
global_cache_flush(); /* FIXME: ? */
@ -985,13 +987,15 @@ static int intel_i965_create_gatt_table(struct agp_bridge_data *bridge)
temp &= 0xfff00000;
intel_private.gtt = ioremap((temp + (512 * 1024)) , 512 * 1024);
if (!intel_private.gtt)
return -ENOMEM;
if (!intel_private.gtt)
return -ENOMEM;
intel_private.registers = ioremap(temp,128 * 4096);
if (!intel_private.registers)
return -ENOMEM;
if (!intel_private.registers) {
iounmap(intel_private.gtt);
return -ENOMEM;
}
temp = readl(intel_private.registers+I810_PGETBL_CTL) & 0xfffff000;
global_cache_flush(); /* FIXME: ? */

3
drivers/char/agp/nvidia-agp.c
View File

@ -157,6 +157,9 @@ static int nvidia_configure(void)
nvidia_private.aperture =
(volatile u32 __iomem *) ioremap(apbase, 33 * PAGE_SIZE);
if (!nvidia_private.aperture)
return -ENOMEM;
return 0;
}