Messages in this thread Patch in this message | | | From | liuhaoran <> | Subject | [PATCH] arm: match-footbridge: Add error handling in dc21285_setup() | Date | Sun, 24 Sep 2023 00:03:53 +0800 |
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This patch adds error-handling for the allocate_resource() inside the dc21285_setup().
Signed-off-by: liuhaoran <liuhaoran14@163.com> --- arch/arm/mach-footbridge/dc21285.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-footbridge/dc21285.c b/arch/arm/mach-footbridge/dc21285.c index f8920d0010de..1970c66eb964 100644 --- a/arch/arm/mach-footbridge/dc21285.c +++ b/arch/arm/mach-footbridge/dc21285.c @@ -261,6 +261,7 @@ static struct notifier_block dc21285_pci_bus_nb = { int __init dc21285_setup(int nr, struct pci_sys_data *sys) { struct resource *res; + int error; res = kcalloc(2, sizeof(struct resource), GFP_KERNEL); if (!res) { @@ -273,10 +274,21 @@ int __init dc21285_setup(int nr, struct pci_sys_data *sys) res[1].flags = IORESOURCE_MEM | IORESOURCE_PREFETCH; res[1].name = "Footbridge prefetch"; - allocate_resource(&iomem_resource, &res[1], 0x20000000, + error = allocate_resource(&iomem_resource, &res[1], 0x20000000, 0xa0000000, 0xffffffff, 0x20000000, NULL, NULL); + if (error < 0) { + printk(KERN_ERR "%s: allocate_resource failed %d!" + , __func__, error); + return 0; + } + allocate_resource(&iomem_resource, &res[0], 0x40000000, 0x80000000, 0xffffffff, 0x40000000, NULL, NULL); + if (error < 0) { + printk(KERN_ERR "%s: allocate_resource failed %d!" + , __func__, error); + return 0; + } sys->mem_offset = DC21285_PCI_MEM; -- 2.17.1
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