x86, mce: Call put_device on device_register failure

This patch adds a call to put_device() when the device_register() call
has failed. This is required so that the last reference to the device is
given up.

Signed-off-by: Levente Kurusa <levex@linux.com>
Link: http://lkml.kernel.org/r/5298F900.9000208@linux.com
Signed-off-by: Borislav Petkov <bp@suse.de>

diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index b3218cd..a389c1d 100644 (file)
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -2272,8 +2272,10 @@ static int mce_device_create(unsigned int cpu)
        dev->release = &mce_device_release;
 
        err = device_register(dev);
-       if (err)
+       if (err) {
+               put_device(dev);
                return err;
+       }
 
        for (i = 0; mce_device_attrs[i]; i++) {
                err = device_create_file(dev, mce_device_attrs[i]);