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-rw-r--r--kernel/kmod.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/kernel/kmod.c b/kernel/kmod.c
index 7efba6f8e3e..48daed4c51b 100644
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -175,16 +175,16 @@ static int wait_for_helper(void *data)
struct subprocess_info *sub_info = data;
pid_t pid;
- /* Install a handler: if SIGCLD isn't handled sys_wait4 won't
- * populate the status, but will return -ECHILD. */
- allow_signal(SIGCHLD);
+ /* If SIGCLD is ignored sys_wait4 won't populate the status. */
+ spin_lock_irq(&current->sighand->siglock);
+ current->sighand->action[SIGCHLD-1].sa.sa_handler = SIG_DFL;
+ spin_unlock_irq(&current->sighand->siglock);
pid = kernel_thread(____call_usermodehelper, sub_info, SIGCHLD);
if (pid < 0) {
sub_info->retval = pid;
} else {
- int ret;
-
+ int ret = -ECHILD;
/*
* Normally it is bogus to call wait4() from in-kernel because
* wait4() wants to write the exit code to a userspace address.