diff options
Diffstat (limited to 'arch')
-rw-r--r-- | arch/powerpc/sysdev/fsl_mpic_timer_wakeup.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/arch/powerpc/sysdev/fsl_mpic_timer_wakeup.c b/arch/powerpc/sysdev/fsl_mpic_timer_wakeup.c index c2baa283e624..147b5d8bb904 100644 --- a/arch/powerpc/sysdev/fsl_mpic_timer_wakeup.c +++ b/arch/powerpc/sysdev/fsl_mpic_timer_wakeup.c @@ -116,6 +116,7 @@ static struct device_attribute mpic_attributes = __ATTR(timer_wakeup, 0644, static int __init fsl_wakeup_sys_init(void) { + struct device *dev_root; int ret; fsl_wakeup = kzalloc(sizeof(struct fsl_mpic_timer_wakeup), GFP_KERNEL); @@ -124,16 +125,26 @@ static int __init fsl_wakeup_sys_init(void) INIT_WORK(&fsl_wakeup->free_work, fsl_free_resource); - ret = device_create_file(mpic_subsys.dev_root, &mpic_attributes); - if (ret) - kfree(fsl_wakeup); + dev_root = bus_get_dev_root(&mpic_subsys); + if (dev_root) { + ret = device_create_file(dev_root, &mpic_attributes); + put_device(dev_root); + if (ret) + kfree(fsl_wakeup); + } return ret; } static void __exit fsl_wakeup_sys_exit(void) { - device_remove_file(mpic_subsys.dev_root, &mpic_attributes); + struct device *dev_root; + + dev_root = bus_get_dev_root(&mpic_subsys); + if (dev_root) { + device_remove_file(dev_root, &mpic_attributes); + put_device(dev_root); + } mutex_lock(&sysfs_lock); |