Geert Uytterhoeven dc1dc2f8a5 TTY: pmac_zilog, check existence of ports in pmz_console_init() ...

When booting a multi-platform m68k kernel on a non-Mac with "console=ttyS0"
on the kernel command line, it crashes with:

Unable to handle kernel NULL pointer dereference at virtual address   (null)
Oops: 00000000
PC: [<0013ad28>] __pmz_startup+0x32/0x2a0
...
Call Trace: [<002c5d3e>] pmz_console_setup+0x64/0xe4

The normal tty driver doesn't crash, because init_pmz() checks
pmz_ports_count again after calling pmz_probe().

In the serial console initialization path, pmz_console_init() doesn't do
this, causing the driver to crash later.

Add a check for pmz_ports_count to fix this.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Finn Thain <fthain@telegraphics.com.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2013-11-25 08:54:25 -08:00

..

hvc

Features:

2013-11-15 13:34:37 +09:00

ipwireless

tty: ipwireless: Remove redundant NULL check before kfree

2013-03-15 13:58:32 -07:00

serial

TTY: pmac_zilog, check existence of ports in pmz_console_init()

2013-11-25 08:54:25 -08:00

vt

vt: properly ignore xterm-256 colour codes

2013-09-26 15:58:27 -07:00

amiserial.c

TTY: amiserial, remove unnecessary platform_set_drvdata()

2013-08-27 16:24:33 -07:00

bfin_jtag_comm.c

TTY: bfin_jtag_comm: fix incorrect placement of __initdata tag

2013-09-30 19:09:37 -07:00

cyclades.c

TTY: add tty_port_tty_hangup helper

2013-03-18 16:24:29 -07:00

ehv_bytechan.c

drivers: clean-up prom.h implicit includes

2013-10-09 20:04:04 -05:00

goldfish.c

goldfish: move to tty_port for flip buffers

2013-01-25 08:09:38 -08:00

isicom.c

TTY: switch tty_flip_buffer_push

2013-01-15 22:30:15 -08:00

Kconfig

tty: metag_da: Add metag DA TTY driver

2013-02-06 11:10:17 -08:00

Makefile

tty: Add timed, writer-prioritized rw semaphore

2013-05-20 12:30:32 -07:00

metag_da.c

tree-wide: use reinit_completion instead of INIT_COMPLETION

2013-11-15 09:32:21 +09:00

moxa.c

TTY: add tty_port_tty_hangup helper

2013-03-18 16:24:29 -07:00

moxa.h

…

mxser.c

tty: mxser: Fix build warning introduced by dfc7b837c7f9 (Re: linux-next: build warning after merge of the tty.current tree)

2013-05-22 10:26:02 -07:00

mxser.h

…

n_gsm.c

n_gsm: race between ld close and gsmtty open

2013-11-25 08:52:53 -08:00

n_hdlc.c

…

n_r3964.c

tty: localise the lock

2012-08-10 12:55:47 -07:00

n_tracerouter.c

…

n_tracesink.c

…

n_tracesink.h

…

n_tty.c

n_tty: Fix 4096-byte canonical reads

2013-11-25 08:36:56 -08:00

nozomi.c

tty: Remove unnecessary semicolons

2013-10-16 13:08:16 -07:00

pty.c

tty: Fix lock order in tty_do_resize()

2013-07-24 15:12:53 -07:00

rocket_int.h

…

rocket.c

TTY: rocket, fix more no-PCI warnings

2013-05-20 12:15:59 -07:00

rocket.h

…

synclink_gt.c

TTY: synclink_gt: fix DTR being raised on hang up

2013-04-12 14:08:17 -07:00

synclink.c

TTY: synclink: replace bitmasks add operation with OR operation.

2013-07-29 12:47:37 -07:00

synclinkmp.c

TTY: snyclinkmp: calculating wrong addresses

2013-07-24 15:23:38 -07:00

sysrq.c

sysrq: Allow magic SysRq key functions to be disabled through Kconfig

2013-10-16 13:01:44 -07:00

tty_audit.c

audit: do not needlessly take a lock in tty_audit_exit

2013-04-30 15:31:28 -04:00

tty_buffer.c

tty: Remove private constant from global namespace

2013-07-23 16:47:10 -07:00

tty_io.c

tty: disassociate_ctty() sends the extra SIGCONT

2013-09-17 21:53:32 -04:00

tty_ioctl.c

tty: Fix SIGTTOU not sent with tcflush()

2013-09-25 17:52:17 -07:00

tty_ldisc.c

tty: Convert termios_mutex to termios_rwsem

2013-07-23 16:43:01 -07:00

tty_ldsem.c

tty: Add timed, writer-prioritized rw semaphore

2013-05-20 12:30:32 -07:00

tty_mutex.c

tty: tty_mutex.c: Fixed coding style warning (using printk)

2012-10-24 11:34:51 -07:00

tty_port.c

tty: Remove unused drop() method from tty_port interface

2013-09-25 18:08:34 -07:00