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[PATCH] solaris emulation: incorrect tty locking 

[akpm@osdl.org: build fix]
[akpm@osdl.org: warning fix]
Signed-off-by: Alan Cox <alan@redhat.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
hifive-unleashed-5.1
Alan Cox 2006-09-29 02:00:57 -07:00 committed by Linus Torvalds
parent 074a5dde04
commit de2a84f2be
2 changed files with 4 additions and 0 deletions
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3
arch/sparc64/solaris/misc.c
View File

@ -11,6 +11,7 @@
#include <linux/limits.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/tty.h>
#include <linux/mman.h>
#include <linux/file.h>
#include <linux/timex.h>
@ -422,7 +423,9 @@ asmlinkage int solaris_procids(int cmd, s32 pid, s32 pgid)
Solaris setpgrp and setsid? */
ret = sys_setpgid(0, 0);
if (ret) return ret;
mutex_lock(&tty_mutex);
current->signal->tty = NULL;
mutex_unlock(&tty_mutex);
return process_group(current);
}
case 2: /* getsid */

1
drivers/char/tty_io.c
View File

@ -129,6 +129,7 @@ LIST_HEAD(tty_drivers); /* linked list of tty drivers */
/* Semaphore to protect creating and releasing a tty. This is shared with
vt.c for deeply disgusting hack reasons */
DEFINE_MUTEX(tty_mutex);
EXPORT_SYMBOL(tty_mutex);
#ifdef CONFIG_UNIX98_PTYS
extern struct tty_driver *ptm_driver; /* Unix98 pty masters; for /dev/ptmx */