1 files changed, 9 insertions, 18 deletions

diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index b37ef1f06b3d..8c404b4e2482 100644
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -712,22 +712,14 @@ isdn_tty_modem_hup(modem_info * info, int local)
 #endif
         info->emu.vpar[4] = 0;
         info->emu.vpar[5] = 8;
-        if (info->dtmf_state) {
-                kfree(info->dtmf_state);
-                info->dtmf_state = NULL;
-        }
-        if (info->silence_state) {
-                kfree(info->silence_state);
-                info->silence_state = NULL;
-        }
-        if (info->adpcms) {
-                kfree(info->adpcms);
-                info->adpcms = NULL;
-        }
-        if (info->adpcmr) {
-                kfree(info->adpcmr);
-                info->adpcmr = NULL;
-        }
+        kfree(info->dtmf_state);
+        info->dtmf_state = NULL;
+        kfree(info->silence_state);
+        info->silence_state = NULL;
+        kfree(info->adpcms);
+        info->adpcms = NULL;
+        kfree(info->adpcmr);
+        info->adpcmr = NULL;
 #endif
         if ((info->msr & UART_MSR_RI) &&
                 (info->emu.mdmreg[REG_RUNG] & BIT_RUNG))
@@ -1721,8 +1713,7 @@ isdn_tty_close(struct tty_struct *tty, struct file *filp)
                  */
                 timeout = jiffies + HZ;
                 while (!(info->lsr & UART_LSR_TEMT)) {
-                        set_current_state(TASK_INTERRUPTIBLE);
-                        schedule_timeout(20);
+                        schedule_timeout_interruptible(20);
                         if (time_after(jiffies,timeout))
                                 break;
                 }