userspace fun: maze game and a new device to support it

[lunaix-os.git] / lunaix-os / kernel / process / signal.c

diff --git a/lunaix-os/kernel/process/signal.c b/lunaix-os/kernel/process/signal.c
index e40526ee9bb6fd2583a286e2645ffadfefcc71a3..eef5c7ba4f72b3a57d08d5059f1067fa01622872 100644 (file)
--- a/lunaix-os/kernel/process/signal.c
+++ b/lunaix-os/kernel/process/signal.c
@@ -147,8 +147,7 @@ int
 signal_send(pid_t pid, signum_t signum)
 {
     if (signum >= _SIG_NUM) {
 signal_send(pid_t pid, signum_t signum)
 {
     if (signum >= _SIG_NUM) {

-        syscall_result(EINVAL);
-        return -1;
+        return EINVAL;

     }
 
     pid_t sender_pid = __current->pid;
     }
 
     pid_t sender_pid = __current->pid;


@@ -166,8 +165,7 @@ signal_send(pid_t pid, signum_t signum)
     } else {
         // TODO: send to all process.
         //  But I don't want to support it yet.
     } else {
         // TODO: send to all process.
         //  But I don't want to support it yet.

-        syscall_result(EINVAL);
-        return -1;
+        return EINVAL;

     }
 
 send_grp: ;
     }
 
 send_grp: ;


@@ -179,8 +177,7 @@ send_grp: ;
 
 send_single:
     if (proc_terminated(proc)) {
 
 send_single:
     if (proc_terminated(proc)) {

-        syscall_result(EINVAL);
-        return -1;
+        return EINVAL;

     }
 
     proc_setsignal(proc, signum);
     }
 
     proc_setsignal(proc, signum);


@@ -358,7 +355,7 @@ __DEFINE_LXSYSCALL(int, pause)
 
 __DEFINE_LXSYSCALL2(int, kill, pid_t, pid, int, signum)
 {
 
 __DEFINE_LXSYSCALL2(int, kill, pid_t, pid, int, signum)
 {

-    return signal_send(pid, signum);
+    return syscall_result(signal_send(pid, signum));

 }
 
 __DEFINE_LXSYSCALL1(int, sigpending, sigset_t, *sigset)
 }
 
 __DEFINE_LXSYSCALL1(int, sigpending, sigset_t, *sigset)