From: Al Viro Date: Sat, 23 Sep 2006 00:18:41 +0000 (+0100) Subject: [PATCH] fix ancient breakage in ebus_init() X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=cc9bd99e9adfa4f44ea050a63fb41a3f764acf84;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git [PATCH] fix ancient breakage in ebus_init() Back when pci_dev had base_address[], loop of form base = &...->base_address[0]; for (.....) { ... *base++ = addr; } was fine, but when that array got spread in ->resource[...].start replacing the initialization with base = &...->resource[0].start; was not a sufficient modification. IOW this code got broken for cases when there had been more than one resource to fill. All way back in 2.3.41-pre3... Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- diff --git a/arch/sparc/kernel/ebus.c b/arch/sparc/kernel/ebus.c index 81c0cbd96ff0..75ac24d229b1 100644 --- a/arch/sparc/kernel/ebus.c +++ b/arch/sparc/kernel/ebus.c @@ -277,7 +277,7 @@ void __init ebus_init(void) struct pci_dev *pdev; struct pcidev_cookie *cookie; struct device_node *dp; - unsigned long addr, *base; + struct resource *p; unsigned short pci_command; int len, reg, nreg; int num_ebus = 0; @@ -321,13 +321,12 @@ void __init ebus_init(void) } nreg = len / sizeof(struct linux_prom_pci_registers); - base = &ebus->self->resource[0].start; + p = &ebus->self->resource[0]; for (reg = 0; reg < nreg; reg++) { if (!(regs[reg].which_io & 0x03000000)) continue; - addr = regs[reg].phys_lo; - *base++ = addr; + (p++)->start = regs[reg].phys_lo; } ebus->ofdev.node = dp;