[PATCH] x86/microcode: handle sysfs error

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/arch/i386/kernel/microcode.c b/arch/i386/kernel/microcode.c
index 9b94797..c4d0291 100644 (file)
--- a/arch/i386/kernel/microcode.c
+++ b/arch/i386/kernel/microcode.c
@@ -656,14 +656,18 @@ static struct attribute_group mc_attr_group = {
 
 static int mc_sysdev_add(struct sys_device *sys_dev)
 {
-       int cpu = sys_dev->id;
+       int err, cpu = sys_dev->id;
        struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
 
        if (!cpu_online(cpu))
                return 0;
+
        pr_debug("Microcode:CPU %d added\n", cpu);
        memset(uci, 0, sizeof(*uci));
-       sysfs_create_group(&sys_dev->kobj, &mc_attr_group);
+
+       err = sysfs_create_group(&sys_dev->kobj, &mc_attr_group);
+       if (err)
+               return err;
 
        microcode_init_cpu(cpu);
        return 0;