1 files changed, 15 insertions, 9 deletions

diff --git a/drivers/tty/synclink.c b/drivers/tty/synclink.c
index 9e071f6985f6..555fdc0ed0f1 100644
--- a/drivers/tty/synclink.c
+++ b/drivers/tty/synclink.c
@@ -291,8 +291,7 @@ struct mgsl_struct {
         bool lcr_mem_requested;
 
         u32 misc_ctrl_value;
-        char flag_buf[MAX_ASYNC_BUFFER_SIZE];
-        char char_buf[MAX_ASYNC_BUFFER_SIZE];   
+        char *flag_buf;
         bool drop_rts_on_tx_done;
 
         bool loopmode_insert_requested;
@@ -1440,7 +1439,6 @@ static void mgsl_isr_receive_data( struct mgsl_struct *info )
         u16 status;
         int work = 0;
         unsigned char DataByte;
-        struct tty_struct *tty = info->port.tty;
         struct  mgsl_icount *icount = &info->icount;
         
         if ( debug_level >= DEBUG_LEVEL_ISR )   
@@ -1502,19 +1500,19 @@ static void mgsl_isr_receive_data( struct mgsl_struct *info )
                         if (status & RXSTATUS_BREAK_RECEIVED) {
                                 flag = TTY_BREAK;
                                 if (info->port.flags & ASYNC_SAK)
-                                        do_SAK(tty);
+                                        do_SAK(info->port.tty);
                         } else if (status & RXSTATUS_PARITY_ERROR)
                                 flag = TTY_PARITY;
                         else if (status & RXSTATUS_FRAMING_ERROR)
                                 flag = TTY_FRAME;
                 }       /* end of if (error) */
-                tty_insert_flip_char(tty, DataByte, flag);
+                tty_insert_flip_char(&info->port, DataByte, flag);
                 if (status & RXSTATUS_OVERRUN) {
                         /* Overrun is special, since it's
                          * reported immediately, and doesn't
                          * affect the current character
                          */
-                        work += tty_insert_flip_char(tty, 0, TTY_OVERRUN);
+                        work += tty_insert_flip_char(&info->port, 0, TTY_OVERRUN);
                 }
         }
 
@@ -1525,7 +1523,7 @@ static void mgsl_isr_receive_data( struct mgsl_struct *info )
         }
                         
         if(work)
-                tty_flip_buffer_push(tty);
+                tty_flip_buffer_push(&info->port);
 }
 
 /* mgsl_isr_misc()
@@ -3416,7 +3414,7 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp)
                 goto cleanup;
         }
         
-        info->port.tty->low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
+        info->port.low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
 
         spin_lock_irqsave(&info->netlock, flags);
         if (info->netcount) {
@@ -3898,7 +3896,13 @@ static int mgsl_alloc_intermediate_rxbuffer_memory(struct mgsl_struct *info)
         info->intermediate_rxbuffer = kmalloc(info->max_frame_size, GFP_KERNEL | GFP_DMA);
         if ( info->intermediate_rxbuffer == NULL )
                 return -ENOMEM;
-
+        /* unused flag buffer to satisfy receive_buf calling interface */
+        info->flag_buf = kzalloc(info->max_frame_size, GFP_KERNEL);
+        if (!info->flag_buf) {
+                kfree(info->intermediate_rxbuffer);
+                info->intermediate_rxbuffer = NULL;
+                return -ENOMEM;
+        }
         return 0;
 
 }       /* end of mgsl_alloc_intermediate_rxbuffer_memory() */
@@ -3917,6 +3921,8 @@ static void mgsl_free_intermediate_rxbuffer_memory(struct mgsl_struct *info)
 {
         kfree(info->intermediate_rxbuffer);
         info->intermediate_rxbuffer = NULL;
+        kfree(info->flag_buf);
+        info->flag_buf = NULL;
 
 }       /* end of mgsl_free_intermediate_rxbuffer_memory() */