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path: root/drivers/serial/68328serial.c
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Diffstat (limited to 'drivers/serial/68328serial.c')
-rw-r--r--drivers/serial/68328serial.c55
1 files changed, 18 insertions, 37 deletions
diff --git a/drivers/serial/68328serial.c b/drivers/serial/68328serial.c
index 30463862603..be0ebce36e5 100644
--- a/drivers/serial/68328serial.c
+++ b/drivers/serial/68328serial.c
@@ -78,10 +78,6 @@ struct m68k_serial *m68k_consinfo = 0;
#define M68K_CLOCK (16667000) /* FIXME: 16MHz is likely wrong */
-#ifdef CONFIG_CONSOLE
-extern wait_queue_head_t keypress_wait;
-#endif
-
struct tty_driver *serial_driver;
/* number of characters left in xmit buffer before we ask for more */
@@ -102,19 +98,13 @@ static void change_speed(struct m68k_serial *info);
* Setup for console. Argument comes from the boot command line.
*/
-#if defined(CONFIG_M68EZ328ADS) || defined(CONFIG_ALMA_ANS) || defined(CONFIG_DRAGONIXVZ)
-#define CONSOLE_BAUD_RATE 115200
-#define DEFAULT_CBAUD B115200
-#else
- /* (es) */
- /* note: this is messy, but it works, again, perhaps defined somewhere else?*/
- #ifdef CONFIG_M68VZ328
- #define CONSOLE_BAUD_RATE 19200
- #define DEFAULT_CBAUD B19200
- #endif
- /* (/es) */
+/* note: this is messy, but it works, again, perhaps defined somewhere else?*/
+#ifdef CONFIG_M68VZ328
+#define CONSOLE_BAUD_RATE 19200
+#define DEFAULT_CBAUD B19200
#endif
+
#ifndef CONSOLE_BAUD_RATE
#define CONSOLE_BAUD_RATE 9600
#define DEFAULT_CBAUD B9600
@@ -300,10 +290,6 @@ static void receive_chars(struct m68k_serial *info, unsigned short rx)
return;
#endif /* CONFIG_MAGIC_SYSRQ */
}
- /* It is a 'keyboard interrupt' ;-) */
-#ifdef CONFIG_CONSOLE
- wake_up(&keypress_wait);
-#endif
}
if(!tty)
@@ -883,7 +869,9 @@ static int get_serial_info(struct m68k_serial * info,
tmp.close_delay = info->close_delay;
tmp.closing_wait = info->closing_wait;
tmp.custom_divisor = info->custom_divisor;
- copy_to_user(retinfo,&tmp,sizeof(*retinfo));
+ if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
+ return -EFAULT;
+
return 0;
}
@@ -896,7 +884,8 @@ static int set_serial_info(struct m68k_serial * info,
if (!new_info)
return -EFAULT;
- copy_from_user(&new_serial,new_info,sizeof(new_serial));
+ if (copy_from_user(&new_serial, new_info, sizeof(new_serial)))
+ return -EFAULT;
old_info = *info;
if (!capable(CAP_SYS_ADMIN)) {
@@ -957,8 +946,7 @@ static int get_lsr_info(struct m68k_serial * info, unsigned int *value)
status = 0;
#endif
local_irq_restore(flags);
- put_user(status,value);
- return 0;
+ return put_user(status, value);
}
/*
@@ -1013,27 +1001,18 @@ static int rs_ioctl(struct tty_struct *tty, struct file * file,
send_break(info, arg ? arg*(100) : 250);
return 0;
case TIOCGSERIAL:
- if (access_ok(VERIFY_WRITE, (void *) arg,
- sizeof(struct serial_struct)))
- return get_serial_info(info,
- (struct serial_struct *) arg);
- return -EFAULT;
+ return get_serial_info(info,
+ (struct serial_struct *) arg);
case TIOCSSERIAL:
return set_serial_info(info,
(struct serial_struct *) arg);
case TIOCSERGETLSR: /* Get line status register */
- if (access_ok(VERIFY_WRITE, (void *) arg,
- sizeof(unsigned int)))
- return get_lsr_info(info, (unsigned int *) arg);
- return -EFAULT;
+ return get_lsr_info(info, (unsigned int *) arg);
case TIOCSERGSTRUCT:
- if (!access_ok(VERIFY_WRITE, (void *) arg,
- sizeof(struct m68k_serial)))
+ if (copy_to_user((struct m68k_serial *) arg,
+ info, sizeof(struct m68k_serial)))
return -EFAULT;
- copy_to_user((struct m68k_serial *) arg,
- info, sizeof(struct m68k_serial));
return 0;
-
default:
return -ENOIOCTLCMD;
}
@@ -1243,7 +1222,9 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
retval = -ERESTARTSYS;
break;
}
+ tty_unlock();
schedule();
+ tty_lock();
}
current->state = TASK_RUNNING;
remove_wait_queue(&info->open_wait, &wait);