drm/xe: Annotate xe_mem_region::mapping with __iomem

[linux-2.6-microblaze.git] / kernel / signal.c

diff --git a/kernel/signal.c b/kernel/signal.c
index 83fcbaf..47a7602 100644 (file)
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -415,7 +415,7 @@ __sigqueue_alloc(int sig, struct task_struct *t, gfp_t gfp_flags,
                 int override_rlimit, const unsigned int sigqueue_flags)
 {
        struct sigqueue *q = NULL;
-       struct ucounts *ucounts = NULL;
+       struct ucounts *ucounts;
        long sigpending;
 
        /*
@@ -1058,12 +1058,11 @@ static void complete_signal(int sig, struct task_struct *p, enum pid_type type)
                        signal->flags = SIGNAL_GROUP_EXIT;
                        signal->group_exit_code = sig;
                        signal->group_stop_count = 0;
-                       t = p;
-                       do {
+                       __for_each_thread(signal, t) {
                                task_clear_jobctl_pending(t, JOBCTL_PENDING_MASK);
                                sigaddset(&t->pending.signal, SIGKILL);
                                signal_wake_up(t, 1);
-                       } while_each_thread(p, t);
+                       }
                        return;
                }
        }
@@ -1471,16 +1470,21 @@ int group_send_sig_info(int sig, struct kernel_siginfo *info,
 int __kill_pgrp_info(int sig, struct kernel_siginfo *info, struct pid *pgrp)
 {
        struct task_struct *p = NULL;
-       int retval, success;
+       int ret = -ESRCH;
 
-       success = 0;
-       retval = -ESRCH;
        do_each_pid_task(pgrp, PIDTYPE_PGID, p) {
                int err = group_send_sig_info(sig, info, p, PIDTYPE_PGID);
-               success |= !err;
-               retval = err;
+               /*
+                * If group_send_sig_info() succeeds at least once ret
+                * becomes 0 and after that the code below has no effect.
+                * Otherwise we return the last err or -ESRCH if this
+                * process group is empty.
+                */
+               if (ret)
+                       ret = err;
        } while_each_pid_task(pgrp, PIDTYPE_PGID, p);
-       return success ? 0 : retval;
+
+       return ret;
 }
 
 int kill_pid_info(int sig, struct kernel_siginfo *info, struct pid *pid)