diff options
Diffstat (limited to 'kernel/umh.c')
| -rw-r--r-- | kernel/umh.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/kernel/umh.c b/kernel/umh.c index b989736e8707..850631518665 100644 --- a/kernel/umh.c +++ b/kernel/umh.c @@ -28,6 +28,7 @@ #include <linux/async.h> #include <linux/uaccess.h> #include <linux/initrd.h> +#include <linux/freezer.h> #include <trace/events/module.h> @@ -403,6 +404,7 @@ EXPORT_SYMBOL(call_usermodehelper_setup); */ int call_usermodehelper_exec(struct subprocess_info *sub_info, int wait) { + unsigned int state = TASK_UNINTERRUPTIBLE; DECLARE_COMPLETION_ONSTACK(done); int retval = 0; @@ -436,18 +438,22 @@ int call_usermodehelper_exec(struct subprocess_info *sub_info, int wait) if (wait == UMH_NO_WAIT) /* task has freed sub_info */ goto unlock; - if (wait & UMH_KILLABLE) { - retval = wait_for_completion_killable(&done); - if (!retval) - goto wait_done; + if (wait & UMH_KILLABLE) + state |= TASK_KILLABLE; + + if (wait & UMH_FREEZABLE) + state |= TASK_FREEZABLE; + retval = wait_for_completion_state(&done, state); + if (!retval) + goto wait_done; + + if (wait & UMH_KILLABLE) { /* umh_complete() will see NULL and free sub_info */ if (xchg(&sub_info->complete, NULL)) goto unlock; - /* fallthrough, umh_complete() was already called */ } - wait_for_completion(&done); wait_done: retval = sub_info->retval; out: |