From 07cda511c78db79974f56b277b3704bfc6bba711 Mon Sep 17 00:00:00 2001 From: "Luck, Tony" Date: Thu, 12 Aug 2010 12:16:43 -0700 Subject: serial: print early console device address in hex Device addresses are usually printed in hex. Signed-off-by: Tony Luck Cc: Andrew Morton Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/serial/8250_early.c b/drivers/serial/8250_early.c index b745792..eaafb98 100644 --- a/drivers/serial/8250_early.c +++ b/drivers/serial/8250_early.c @@ -203,13 +203,13 @@ static int __init parse_options(struct early_serial8250_device *device, if (mmio || mmio32) printk(KERN_INFO - "Early serial console at MMIO%s 0x%llu (options '%s')\n", + "Early serial console at MMIO%s 0x%llx (options '%s')\n", mmio32 ? "32" : "", (unsigned long long)port->mapbase, device->options); else printk(KERN_INFO - "Early serial console at I/O port 0x%lu (options '%s')\n", + "Early serial console at I/O port 0x%lx (options '%s')\n", port->iobase, device->options); -- cgit v0.10.2 From f64ac9830b2a2455208ee023f6bac480ae159db4 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 12 Aug 2010 13:48:57 -0700 Subject: ip2: remove unneeded NULL check We don't pass NULL tty pointers to the close function, and anyway we already dereferenced it at this point. This check can be removed. Signed-off-by: Dan Carpenter Cc: "Michael H. Warfield" Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c index 07f3ea3..8fa041e 100644 --- a/drivers/char/ip2/ip2main.c +++ b/drivers/char/ip2/ip2main.c @@ -1650,7 +1650,7 @@ ip2_close( PTTY tty, struct file *pFile ) /* disable DSS reporting */ i2QueueCommands(PTYPE_INLINE, pCh, 100, 4, CMD_DCD_NREP, CMD_CTS_NREP, CMD_DSR_NREP, CMD_RI_NREP); - if ( !tty || (tty->termios->c_cflag & HUPCL) ) { + if (tty->termios->c_cflag & HUPCL) { i2QueueCommands(PTYPE_INLINE, pCh, 100, 2, CMD_RTSDN, CMD_DTRDN); pCh->dataSetOut &= ~(I2_DTR | I2_RTS); i2QueueCommands( PTYPE_INLINE, pCh, 100, 1, CMD_PAUSE(25)); -- cgit v0.10.2 From 05254a207a255e1a76f9b349a783b5016b874d72 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 12 Aug 2010 13:48:59 -0700 Subject: ip2: return -EFAULT on copy_to_user errors copy_to_user() returns the number of bytes remaining but we want to return a negative error code on errors. Signed-off-by: Dan Carpenter Cc: "Michael H. Warfield" Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c index 8fa041e..d4b71e8 100644 --- a/drivers/char/ip2/ip2main.c +++ b/drivers/char/ip2/ip2main.c @@ -2930,6 +2930,8 @@ ip2_ipl_ioctl (struct file *pFile, UINT cmd, ULONG arg ) if ( pCh ) { rc = copy_to_user(argp, pCh, sizeof(i2ChanStr)); + if (rc) + rc = -EFAULT; } else { rc = -ENODEV; } -- cgit v0.10.2 From 49bf7eaffc0c252ab2a2cc8f1bf8c0077e778704 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 11 Aug 2010 20:00:09 +0200 Subject: rocket: add a mutex_unlock() This path needs a mutex_unlock(). This is stuff from the bkl to mutex transition. Signed-off-by: Dan Carpenter Acked-by: Alan Cox Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c index 79c3bc6..7c79d24 100644 --- a/drivers/char/rocket.c +++ b/drivers/char/rocket.c @@ -1244,6 +1244,7 @@ static int set_config(struct tty_struct *tty, struct r_port *info, } info->flags = ((info->flags & ~ROCKET_USR_MASK) | (new_serial.flags & ROCKET_USR_MASK)); configure_r_port(tty, info, NULL); + mutex_unlock(&info->port.mutex); return 0; } -- cgit v0.10.2 From 80d04f22b0869a1145b36a90a83a79603ac92be8 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 11 Aug 2010 20:01:46 +0200 Subject: synclink: add mutex_unlock() on error path There is a path which still holds its mutex here. Signed-off-by: Dan Carpenter Acked-by: Alan Cox Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c index fef80cf..e63b830 100644 --- a/drivers/char/synclink_gt.c +++ b/drivers/char/synclink_gt.c @@ -691,8 +691,10 @@ static int open(struct tty_struct *tty, struct file *filp) if (info->port.count == 1) { /* 1st open on this device, init hardware */ retval = startup(info); - if (retval < 0) + if (retval < 0) { + mutex_unlock(&info->port.mutex); goto cleanup; + } } mutex_unlock(&info->port.mutex); retval = block_til_ready(tty, filp, info); -- cgit v0.10.2 From 5d56356a2c9f5e96efe7a095cbf9b6fee8265d22 Mon Sep 17 00:00:00 2001 From: Kulikov Vasiliy Date: Sun, 1 Aug 2010 10:29:06 +0400 Subject: 68328serial: check return value of copy_*_user() instead of access_ok() As copy_*_user() calls access_ok() it should not be called explicitly. Signed-off-by: Kulikov Vasiliy Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/serial/68328serial.c b/drivers/serial/68328serial.c index 7356a56..be0ebce 100644 --- a/drivers/serial/68328serial.c +++ b/drivers/serial/68328serial.c @@ -869,7 +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; } @@ -882,7 +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)) { @@ -943,8 +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); } /* @@ -999,27 +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; } -- cgit v0.10.2