We should call vga_arb_device_init() after PCI enumeration, otherwise it may fail to select the default VGA device. Since vga_arb_device_init() and PCI enumeration function (i.e., pcibios_init() or acpi_init()) are both wrapped by subsys_initcall(), their sequence is not assured. So, we use subsys_initcall_sync() instead of subsys_initcall() to wrap vga_arb_ device_init().
Signed-off-by: Huacai Chen chenhuacai@loongson.cn --- drivers/gpu/vga/vgaarb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/vga/vgaarb.c b/drivers/gpu/vga/vgaarb.c index 5180c5687ee5..4b8a62af34cf 100644 --- a/drivers/gpu/vga/vgaarb.c +++ b/drivers/gpu/vga/vgaarb.c @@ -1564,4 +1564,4 @@ static int __init vga_arb_device_init(void) pr_info("loaded\n"); return rc; } -subsys_initcall(vga_arb_device_init); +subsys_initcall_sync(vga_arb_device_init);