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authorDavid S. Miller <davem@davemloft.net>2009-07-14 13:13:41 -0700
committerDavid S. Miller <davem@davemloft.net>2009-07-14 13:13:41 -0700
commit252aa9d94a04252046f3a382e6aca1b5c95921d8 (patch)
tree5b265e4ae8011bd99938b2d4da5abac411aa6fc7 /drivers/net/hamradio/6pack.c
parent8660c1240ec6016522b882c88751cb4ce40bf0e8 (diff)
Revert "NET: Fix locking issues in PPP, 6pack, mkiss and strip line disciplines."
This reverts commit adeab1afb7de89555c69aab5ca21300c14af6369. As Alan Cox explained, the TTY layer changes that went recently to get rid of the tty->low_latency stuff fixes this already, and even for -stable it's the ->low_latency changes that should go in to fix this, rather than this patch. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/hamradio/6pack.c')
-rw-r--r--drivers/net/hamradio/6pack.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/net/hamradio/6pack.c b/drivers/net/hamradio/6pack.c
index 913a5640659..155160052c8 100644
--- a/drivers/net/hamradio/6pack.c
+++ b/drivers/net/hamradio/6pack.c
@@ -398,14 +398,13 @@ static DEFINE_RWLOCK(disc_data_lock);
static struct sixpack *sp_get(struct tty_struct *tty)
{
- unsigned long flags;
struct sixpack *sp;
- read_lock_irqsave(&disc_data_lock, flags);
+ read_lock(&disc_data_lock);
sp = tty->disc_data;
if (sp)
atomic_inc(&sp->refcnt);
- read_unlock_irqrestore(&disc_data_lock, flags);
+ read_unlock(&disc_data_lock);
return sp;
}
@@ -689,13 +688,12 @@ out:
*/
static void sixpack_close(struct tty_struct *tty)
{
- unsigned long flags;
struct sixpack *sp;
- write_lock_irqsave(&disc_data_lock, flags);
+ write_lock(&disc_data_lock);
sp = tty->disc_data;
tty->disc_data = NULL;
- write_unlock_irqrestore(&disc_data_lock, flags);
+ write_unlock(&disc_data_lock);
if (!sp)
return;