Revert "n_gsm.c: add tx_lock in gsm_send"

This reverts commit f96f7f7f39af53274d98aa9c29d6fa4d122218a4, at the
request of Jin.

Cc: xiaojin <jin.xiao@intel.com>
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index d84dcfeadce392d36fe58835152d1908f950ad62..e0f80ce0cf8f2b4d46f2828148b960d8c377cec9 100644 (file)
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -573,7 +573,6 @@ static void gsm_send(struct gsm_mux *gsm, int addr, int cr, int control)
        int len;
        u8 cbuf[10];
        u8 ibuf[3];
-       unsigned long flags;
 
        switch (gsm->encoding) {
        case 0:
@@ -603,9 +602,7 @@ static void gsm_send(struct gsm_mux *gsm, int addr, int cr, int control)
                WARN_ON(1);
                return;
        }
-       spin_lock_irqsave(&gsm->tx_lock, flags);
        gsm->output(gsm, cbuf, len);
-       spin_unlock_irqrestore(&gsm->tx_lock, flags);
        gsm_print_packet("-->", addr, cr, control, NULL, 0);
 }