kill(-1, sig) returns 0 if it has found some processes but there
is no one for which we have permission to send the signal.
Doesn't it make more sense to return -ESRCH in this case?
Signed-off-by: Oleg Nesterov <[EMAIL PROTECTED]>
--- eric-mm1/kernel/signal.c~2_perm 2006-12-16 22:17:52.000000000 +0300
+++ eric-mm1/kernel/signal.c 2006-12-16 22:22:48.000000000 +0300
@@ -1326,20 +1326,16 @@ static int kill_something_info(int sig,
ret = kill_pid_info(sig, info, find_pid(pid));
} else if (pid == -1) {
struct task_struct *p;
- int found = 0;
- ret = 0;
+ ret = -ESRCH;
read_lock(&tasklist_lock);
for_each_process(p)
if (!is_init(p) && p != current->group_leader) {
int err = group_send_sig_info(sig, info, p);
if (err != -EPERM)
ret = err;
- found = 1;
}
read_unlock(&tasklist_lock);
- if (!found)
- ret = -ESRCH;
} else {
struct pid *grp = task_pgrp(current);
if (pid != 0)
-
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