Merge branch 'agp-patches' of git://git.kernel.org/pub/scm/linux/kern…

…el/git/airlied/agp-2.6 * 'agp-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/agp-2.6: agp: balance ioremap checks agp: Add device id for P4M900 to via-agp module efficeon-agp leaks 'struct agp_bridge_data' in error paths of agp_efficeon_probe()
mariux64 · Aug 25, 2007 · 6ae26fa · 6ae26fa
2 parents 6869ce1 + 5bdbc7d
commit 6ae26fa
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Showing 9 changed files with 30 additions and 5 deletions.
diff --git a/drivers/char/agp/amd-k7-agp.c b/drivers/char/agp/amd-k7-agp.c
@@ -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);

diff --git a/drivers/char/agp/ati-agp.c b/drivers/char/agp/ati-agp.c
@@ -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

diff --git a/drivers/char/agp/efficeon-agp.c b/drivers/char/agp/efficeon-agp.c
@@ -375,6 +375,7 @@ static int __devinit agp_efficeon_probe(struct pci_dev *pdev,
 	if (!r->start && r->end) {
 		if (pci_assign_resource(pdev, 0)) {
 			printk(KERN_ERR PFX "could not assign resource 0\n");
+			agp_put_bridge(bridge);
 			return -ENODEV;
 		}
 	}
@@ -386,6 +387,7 @@ static int __devinit agp_efficeon_probe(struct pci_dev *pdev,
 	*/
 	if (pci_enable_device(pdev)) {
 		printk(KERN_ERR PFX "Unable to Enable PCI device\n");
+		agp_put_bridge(bridge);
 		return -ENODEV;
 	}
 

diff --git a/drivers/char/agp/hp-agp.c b/drivers/char/agp/hp-agp.c
@@ -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;
 	}
 

diff --git a/drivers/char/agp/i460-agp.c b/drivers/char/agp/i460-agp.c
@@ -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;

diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
@@ -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: ? */

diff --git a/drivers/char/agp/nvidia-agp.c b/drivers/char/agp/nvidia-agp.c
@@ -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;
 }
 

diff --git a/drivers/char/agp/via-agp.c b/drivers/char/agp/via-agp.c
@@ -399,6 +399,11 @@ static struct agp_device_ids via_agp_device_ids[] __devinitdata =
 		.device_id  = PCI_DEVICE_ID_VIA_P4M890,
 		.chipset_name   = "P4M890",
 	},
+	/* P4M900 */
+	{
+		.device_id  = PCI_DEVICE_ID_VIA_VT3364,
+		.chipset_name   = "P4M900",
+	},
 	{ }, /* dummy final entry, always present */
 };
 

diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
@@ -1290,6 +1290,7 @@
 #define PCI_DEVICE_ID_VIA_VT3324	0x0324
 #define PCI_DEVICE_ID_VIA_VT3336	0x0336
 #define PCI_DEVICE_ID_VIA_VT3351	0x0351
+#define PCI_DEVICE_ID_VIA_VT3364	0x0364
 #define PCI_DEVICE_ID_VIA_8371_0	0x0391
 #define PCI_DEVICE_ID_VIA_8501_0	0x0501
 #define PCI_DEVICE_ID_VIA_82C561	0x0561