diff options
Diffstat (limited to 'kernel/power/user.c')
| -rw-r--r-- | kernel/power/user.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/kernel/power/user.c b/kernel/power/user.c index f7b7a785a5c6..38418cda32a6 100644 --- a/kernel/power/user.c +++ b/kernel/power/user.c @@ -292,7 +292,7 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp, break; } - if (pm_ops->prepare) { + if (pm_ops && pm_ops->prepare) { error = pm_ops->prepare(PM_SUSPEND_MEM); if (error) goto OutS3; @@ -311,7 +311,7 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp, device_resume(); } resume_console(); - if (pm_ops->finish) + if (pm_ops && pm_ops->finish) pm_ops->finish(PM_SUSPEND_MEM); OutS3: @@ -322,20 +322,25 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp, switch (arg) { case PMOPS_PREPARE: - if (pm_ops->prepare) { + if (pm_ops && pm_ops->prepare) error = pm_ops->prepare(PM_SUSPEND_DISK); - } + else + error = -ENOSYS; break; case PMOPS_ENTER: kernel_shutdown_prepare(SYSTEM_SUSPEND_DISK); - error = pm_ops->enter(PM_SUSPEND_DISK); + if (pm_ops && pm_ops->enter) + error = pm_ops->enter(PM_SUSPEND_DISK); + else + error = -ENOSYS; break; case PMOPS_FINISH: - if (pm_ops && pm_ops->finish) { + if (pm_ops && pm_ops->finish) pm_ops->finish(PM_SUSPEND_DISK); - } + else + error = -ENOSYS; break; default: |