diff options
Diffstat (limited to 'kernel/power/power.h')
| -rw-r--r-- | kernel/power/power.h | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/kernel/power/power.h b/kernel/power/power.h index 0c4defe6d3b..21724eee520 100644 --- a/kernel/power/power.h +++ b/kernel/power/power.h @@ -231,8 +231,28 @@ extern int pm_test_level; #ifdef CONFIG_SUSPEND_FREEZER static inline int suspend_freeze_processes(void) { - int error = freeze_processes(); - return error ? : freeze_kernel_threads(); + int error; + + error = freeze_processes(); + + /* + * freeze_processes() automatically thaws every task if freezing + * fails. So we need not do anything extra upon error. + */ + if (error) + goto Finish; + + error = freeze_kernel_threads(); + + /* + * freeze_kernel_threads() thaws only kernel threads upon freezing + * failure. So we have to thaw the userspace tasks ourselves. + */ + if (error) + thaw_processes(); + + Finish: + return error; } static inline void suspend_thaw_processes(void) |