diff options
| author |   Dan Carpenter <dan.carpenter@oracle.com> | 2012-08-16 16:16:56 +0300 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-08-16 12:07:23 -0700 |
| commit | c3a6344ae475763b6fb0fb2ec3639004f500d0f1 (patch) | |
| tree | 3279f1e5f5651d322a2177da2108f465bd9c194d | |
| parent | n_gsm: memory leak in uplink error path (diff) | |
| download | wireguard-linux-c3a6344ae475763b6fb0fb2ec3639004f500d0f1.tar.xz wireguard-linux-c3a6344ae475763b6fb0fb2ec3639004f500d0f1.zip | |
TTY: tty_alloc_driver() returns error pointers
We changed these from alloc_tty_driver() to tty_alloc_driver() so the
error handling needs to modified to check for IS_ERR() instead of NULL.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/char/pcmcia/synclink_cs.c | 4 | ||||
| -rw-r--r-- | drivers/char/ttyprintk.c | 4 | ||||
| -rw-r--r-- | drivers/tty/moxa.c | 4 | ||||
| -rw-r--r-- | drivers/tty/pty.c | 8 |
4 files changed, 10 insertions, 10 deletions
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c index d9335ae1fadf..5db08c78beb5 100644 --- a/drivers/char/pcmcia/synclink_cs.c +++ b/drivers/char/pcmcia/synclink_cs.c @@ -2813,8 +2813,8 @@ static int __init synclink_cs_init(void) serial_driver = tty_alloc_driver(MAX_DEVICE_COUNT, TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV); - if (!serial_driver) { - rc = -ENOMEM; + if (IS_ERR(serial_driver)) { + rc = PTR_ERR(serial_driver); goto err; } diff --git a/drivers/char/ttyprintk.c b/drivers/char/ttyprintk.c index 561f8aa7cd87..af98f6d6509b 100644 --- a/drivers/char/ttyprintk.c +++ b/drivers/char/ttyprintk.c @@ -187,8 +187,8 @@ static int __init ttyprintk_init(void) TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_REAL_RAW | TTY_DRIVER_UNNUMBERED_NODE); - if (!ttyprintk_driver) - return ret; + if (IS_ERR(ttyprintk_driver)) + return PTR_ERR(ttyprintk_driver); ttyprintk_driver->driver_name = "ttyprintk"; ttyprintk_driver->name = "ttyprintk"; diff --git a/drivers/tty/moxa.c b/drivers/tty/moxa.c index 3b17a044c212..56e616b9109a 100644 --- a/drivers/tty/moxa.c +++ b/drivers/tty/moxa.c @@ -1048,8 +1048,8 @@ static int __init moxa_init(void) moxaDriver = tty_alloc_driver(MAX_PORTS + 1, TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV); - if (!moxaDriver) - return -ENOMEM; + if (IS_ERR(moxaDriver)) + return PTR_ERR(moxaDriver); moxaDriver->name = "ttyMX"; moxaDriver->major = ttymajor; diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c index f5a27c66ff60..2bace847eb39 100644 --- a/drivers/tty/pty.c +++ b/drivers/tty/pty.c @@ -448,14 +448,14 @@ static void __init legacy_pty_init(void) TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_ALLOC); - if (!pty_driver) + if (IS_ERR(pty_driver)) panic("Couldn't allocate pty driver"); pty_slave_driver = tty_alloc_driver(legacy_count, TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_ALLOC); - if (!pty_slave_driver) + if (IS_ERR(pty_slave_driver)) panic("Couldn't allocate pty slave driver"); pty_driver->driver_name = "pty_master"; @@ -682,7 +682,7 @@ static void __init unix98_pty_init(void) TTY_DRIVER_DYNAMIC_DEV | TTY_DRIVER_DEVPTS_MEM | TTY_DRIVER_DYNAMIC_ALLOC); - if (!ptm_driver) + if (IS_ERR(ptm_driver)) panic("Couldn't allocate Unix98 ptm driver"); pts_driver = tty_alloc_driver(NR_UNIX98_PTY_MAX, TTY_DRIVER_RESET_TERMIOS | @@ -690,7 +690,7 @@ static void __init unix98_pty_init(void) TTY_DRIVER_DYNAMIC_DEV | TTY_DRIVER_DEVPTS_MEM | TTY_DRIVER_DYNAMIC_ALLOC); - if (!pts_driver) + if (IS_ERR(pts_driver)) panic("Couldn't allocate Unix98 pts driver"); ptm_driver->driver_name = "pty_master"; |