X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;ds=sidebyside;f=kernel%2Fsys.c;h=1ac2d1c5d84ee31fdbae021a4313ee1b6e328b69;hb=0cc72dc7f050188d8d7344b1dd688cbc68d3cd30;hp=c87b461de38dc1b22e2c1597b27b422d6d409932;hpb=dd8856bda5f1308beb113281b248683992998a9e;p=mv-sheeva.git

diff --git a/kernel/sys.c b/kernel/sys.c
index c87b461de38..1ac2d1c5d84 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1102,14 +1102,14 @@ asmlinkage long sys_setreuid(uid_t ruid, uid_t euid)
 asmlinkage long sys_setuid(uid_t uid)
 {
 	int old_euid = current->euid;
-	int old_ruid, old_suid, new_ruid, new_suid;
+	int old_ruid, old_suid, new_suid;
 	int retval;
 
 	retval = security_task_setuid(uid, (uid_t)-1, (uid_t)-1, LSM_SETID_ID);
 	if (retval)
 		return retval;
 
-	old_ruid = new_ruid = current->uid;
+	old_ruid = current->uid;
 	old_suid = current->suid;
 	new_suid = old_suid;
 	
@@ -1484,7 +1484,6 @@ asmlinkage long sys_setsid(void)
 	pid_t session;
 	int err = -EPERM;
 
-	mutex_lock(&tty_mutex);
 	write_lock_irq(&tasklist_lock);
 
 	/* Fail if I am already a session leader */
@@ -1504,12 +1503,15 @@ asmlinkage long sys_setsid(void)
 
 	group_leader->signal->leader = 1;
 	__set_special_pids(session, session);
+
+	spin_lock(&group_leader->sighand->siglock);
 	group_leader->signal->tty = NULL;
 	group_leader->signal->tty_old_pgrp = 0;
+	spin_unlock(&group_leader->sighand->siglock);
+
 	err = process_group(group_leader);
 out:
 	write_unlock_irq(&tasklist_lock);
-	mutex_unlock(&tty_mutex);
 	return err;
 }