diff options
Diffstat (limited to 'drivers/net/slip/slip.c')
| -rw-r--r-- | drivers/net/slip/slip.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/slip/slip.c b/drivers/net/slip/slip.c index 820e1a8fc956..faae711cf793 100644 --- a/drivers/net/slip/slip.c +++ b/drivers/net/slip/slip.c @@ -693,6 +693,8 @@ static void slip_receive_buf(struct tty_struct *tty, const u8 *cp, const u8 *fp, if (!sl || sl->magic != SLIP_MAGIC || !netif_running(sl->dev)) return; + spin_lock_bh(&sl->lock); + /* Read the characters out of the buffer */ while (count--) { if (fp && *fp++) { @@ -708,6 +710,8 @@ static void slip_receive_buf(struct tty_struct *tty, const u8 *cp, const u8 *fp, #endif slip_unesc(sl, *cp++); } + + spin_unlock_bh(&sl->lock); } /************************************ |