driver core: cpu: use put_device() if device_register fail

if device_register() returned an error! Always use put_device()
to give up the reference initialized.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index d21a2d913107087a349ecaa7d62160615a255820..2da998baa75cb26714783bcce909332f8ae8e75e 100644 (file)
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -382,8 +382,10 @@ int register_cpu(struct cpu *cpu, int num)
        if (cpu->hotpluggable)
                cpu->dev.groups = hotplugable_cpu_attr_groups;
        error = device_register(&cpu->dev);
-       if (error)
+       if (error) {
+               put_device(&cpu->dev);
                return error;
+       }
 
        per_cpu(cpu_sys_devices, num) = &cpu->dev;
        register_cpu_under_node(num, cpu_to_node(num));