ar71xx: check returned value of ioremap in ar71xx_pcibios_setup

SVN-Revision: 20288
14 years ago · 18aa68d368
parent 73f7a1c224
commit 18aa68d368
1 changed files with 2 additions and 0 deletions
--- a/target/linux/ar71xx/files/arch/mips/pci/pci-ar71xx.c
+++ b/target/linux/ar71xx/files/arch/mips/pci/pci-ar71xx.c
@ -384,6 +384,8 @@ int __init ar71xx_pcibios_init(void)

 	ar71xx_pcicfg_base = ioremap_nocache(AR71XX_PCI_CFG_BASE,
 						AR71XX_PCI_CFG_SIZE);
+	if (ar71xx_pcicfg_base == NULL)
+		return -ENOMEM;

 	__raw_writel(PCI_WIN0_OFFS, ddr_base + AR71XX_DDR_REG_PCI_WIN0);
 	__raw_writel(PCI_WIN1_OFFS, ddr_base + AR71XX_DDR_REG_PCI_WIN1);