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* 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (79 commits)
TTY: serial_core: Fix crash if DCD drop during suspend
tty/serial: atmel_serial: bootconsole removed from auto-enumerates
Revert "TTY: call tty_driver_lookup_tty unconditionally"
tty/serial: atmel_serial: add device tree support
tty/serial: atmel_serial: auto-enumerate ports
tty/serial: atmel_serial: whitespace and braces modifications
tty/serial: atmel_serial: change platform_data variable name
tty/serial: RS485 bindings for device tree
TTY: call tty_driver_lookup_tty unconditionally
TTY: pty, release tty in all ptmx_open fail paths
TTY: make tty_add_file non-failing
TTY: drop driver reference in tty_open fail path
8250_pci: Fix kernel panic when pch_uart is disabled
h8300: drivers/serial/Kconfig was moved
parport_pc: release IO region properly if unsupported ITE887x card is found
tty: Support compat_ioctl get/set termios_locked
hvc_console: display printk messages on console.
TTY: snyclinkmp: forever loop in tx_load_dma_buffer()
tty/n_gsm: avoid fifo overflow in gsm_dlci_data_output
tty/n_gsm: fix a bug in gsm_dlci_data_output (adaption = 2 case)
...
Fix up Conflicts in:
- drivers/tty/serial/8250_pci.c
Trivial conflict with removed duplicate device ID
- drivers/tty/serial/atmel_serial.c
Annoying silly conflict between "specify the port num via
platform_data" and other changes to atmel_console_init
The externs here didn't agree with the declarations in qos.c.
Better would be probably to move this into a header, but since it's
common practice to have naked externs with sysctls I left it for now.
Cc: samuel@sortiz.org
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Let's use the newly added helper to avoid stalls in drivers which are
not yet ported to tty_port helpers.
Those which are broken (call tty_wait_until_sent with irqs disabled)
are left untouched. They are in a deeper trouble than we are trying to
solve here. This includes amiserial, 68328serial, 68360serial and
crisv10.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Unnecessary casts of void * clutter the code.
These are the remainder casts after several specific
patches to remove netdev_priv and dev_priv.
Done via coccinelle script:
$ cat cast_void_pointer.cocci
@@
type T;
T *pt;
void *pv;
@@
- pt = (T *)pv;
+ pt = pv;
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@conan.davemloft.net>
The SEQ output functions grab the obj->attrib->hb_spinlock lock of
sub-objects found in the hash traversal. These locks are in a different
realm than the one used for the irias_objects hash table itself.
So put the latter into it's own lockdep class.
Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The variable 'ret' is set but unused, and this pointed out that
errors from irlmp_connect_response() are not propagated to the
caller.
Note that this is currently academic since irlmp_connect_response()
always returns 0. :-)
Signed-off-by: David S. Miller <davem@davemloft.net>
use tty_insert_flip_string and tty_flip_buffer_push to deliver incoming data
packets from the IrDA device instead of delivering the packets directly to the
line discipline. Following later approach resulted in warning "Sleeping function
called from invalid context".
Signed-off-by: Amit Virdi <amit.virdi@st.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
5b40964ead ("irda: Remove BKL instances
from af_irda.c") introduced a path where we have a locking unbalance.
If we pass invalid flags, we unlock a socket we never locked,
resulting in this...
=====================================
[ BUG: bad unlock balance detected! ]
-------------------------------------
trinity/20101 is trying to release lock (sk_lock-AF_IRDA) at:
[<ffffffffa057f001>] irda_sendmsg+0x207/0x21d [irda]
but there are no more locks to release!
other info that might help us debug this:
no locks held by trinity/20101.
stack backtrace:
Pid: 20101, comm: trinity Not tainted 2.6.39-rc3+ #3
Call Trace:
[<ffffffffa057f001>] ? irda_sendmsg+0x207/0x21d [irda]
[<ffffffff81085041>] print_unlock_inbalance_bug+0xc7/0xd2
[<ffffffffa057f001>] ? irda_sendmsg+0x207/0x21d [irda]
[<ffffffff81086aca>] lock_release+0xcf/0x18e
[<ffffffff813ed190>] release_sock+0x2d/0x155
[<ffffffffa057f001>] irda_sendmsg+0x207/0x21d [irda]
[<ffffffff813e9f8c>] __sock_sendmsg+0x69/0x75
[<ffffffff813ea105>] sock_sendmsg+0xa1/0xb6
[<ffffffff81100ca3>] ? might_fault+0x5c/0xac
[<ffffffff81086b7c>] ? lock_release+0x181/0x18e
[<ffffffff81100cec>] ? might_fault+0xa5/0xac
[<ffffffff81100ca3>] ? might_fault+0x5c/0xac
[<ffffffff81133b94>] ? fcheck_files+0xb9/0xf0
[<ffffffff813f387a>] ? copy_from_user+0x2f/0x31
[<ffffffff813f3b70>] ? verify_iovec+0x52/0xa6
[<ffffffff813eb4e3>] sys_sendmsg+0x23a/0x2b8
[<ffffffff81086b7c>] ? lock_release+0x181/0x18e
[<ffffffff810773c6>] ? up_read+0x28/0x2c
[<ffffffff814bec3d>] ? do_page_fault+0x360/0x3b4
[<ffffffff81087043>] ? trace_hardirqs_on_caller+0x10b/0x12f
[<ffffffff810458aa>] ? finish_task_switch+0xb2/0xe3
[<ffffffff8104583e>] ? finish_task_switch+0x46/0xe3
[<ffffffff8108364a>] ? trace_hardirqs_off_caller+0x33/0x90
[<ffffffff814bbaf9>] ? retint_swapgs+0x13/0x1b
[<ffffffff81087043>] ? trace_hardirqs_on_caller+0x10b/0x12f
[<ffffffff810a9dd3>] ? audit_syscall_entry+0x11c/0x148
[<ffffffff8125609e>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[<ffffffff814c22c2>] system_call_fastpath+0x16/0x1b
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Length fields provided by a peer for names and attributes may be longer
than the destination array sizes. Validate lengths to prevent stack
buffer overflows.
Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com>
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Invalid nicknames containing only spaces will result in an underflow in
a memcpy size calculation, subsequently destroying the heap and
panicking.
v2 also catches the case where the provided nickname is longer than the
buffer size, which can result in controllable heap corruption.
Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com>
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Only oddities here are a couple of drivers that bogusly called the ldisc
helpers instead of returning -ENOIOCTLCMD. Fix the bug and the rest goes
away.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Doing tiocmget was such fun we should do tiocmset as well for the same
reasons
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We don't actually need this and it causes problems for internal use of
this functionality. Currently there is a single use of the FILE * pointer.
That is the serial core which uses it to check tty_hung_up_p. However if
that is true then IO_ERROR is also already set so the check may be removed.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (42 commits)
ipv4: dont create routes on down devices
epic100: hamachi: yellowfin: Fix skb allocation size
sundance: Fix oopses with corrupted skb_shared_info
Revert "ipv4: Allow configuring subnets as local addresses"
USB: mcs7830: return negative if auto negotiate fails
irda: prevent integer underflow in IRLMP_ENUMDEVICES
tcp: fix listening_get_next()
atl1c: Do not use legacy PCI power management
mac80211: fix mesh forwarding
MAINTAINERS: email address change
net: Fix range checks in tcf_valid_offset().
net_sched: sch_sfq: fix allot handling
hostap: remove netif_stop_queue from init
mac80211/rt2x00: add ieee80211_tx_status_ni()
typhoon: memory corruption in typhoon_get_drvinfo()
net: Add USB PID for new MOSCHIP USB ethernet controller MCS7832 variant
net_sched: always clone skbs
ipv6: Fragment locally generated tunnel-mode IPSec6 packets as needed.
netlink: fix gcc -Wconversion compilation warning
asix: add USB ID for Logitec LAN-GTJ U2A
...
If the user-provided len is less than the expected offset, the
IRLMP_ENUMDEVICES getsockopt will do a copy_to_user() with a very large
size value. While this isn't be a security issue on x86 because it will
get caught by the access_ok() check, it may leak large amounts of kernel
heap on other architectures. In any event, this patch fixes it.
Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Changed Makefile to use <modules>-y instead of <modules>-objs
because -objs is deprecated and not mentioned in
Documentation/kbuild/makefiles.txt.
Signed-off-by: Tracey Dent <tdent48227@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Changed Makefile to use <modules>-y instead of <modules>-objs
because -objs is deprecated and not mentioned in
Documentation/kbuild/makefiles.txt.
Signed-off-by: Tracey Dent <tdent48227@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Changed Makefile to use <modules>-y instead of <modules>-objs
because -objs is deprecated and not mentioned in
Documentation/kbuild/makefiles.txt.
Signed-off-by: Tracey Dent <tdent48227@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
irttp_data_request() returns meaningful errorcodes, while irttp_udata_request()
just returns -1 in similar situations. Sync the two and the loglevels of the
accompanying output.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
The big kernel lock has been removed from all these files at some point,
leaving only the #include.
Remove this too as a cleanup.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sending zero byte packets is not neccessarily an error (AF_INET accepts it,
too), so just apply a shortcut. This was discovered because of a non-working
software with WINE. See
http://bugs.winehq.org/show_bug.cgi?id=19397#c86http://thread.gmane.org/gmane.linux.irda.general/1643
for very detailed debugging information and a testcase. Kudos to Wolfgang for
those!
Reported-by: Wolfgang Schwotzer <wolfgang.schwotzer@gmx.net>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Tested-by: Mike Evans <mike.evans@cardolan.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
While parsing the GetValuebyClass command frame, we could potentially write
passed the skb->data pointer.
Cc: stable@kernel.org
Reported-by: Ilja Van Sprundel <ivansprundel@ioactive.com>
Signed-off-by: Samuel Ortiz <samuel@sortiz.org>
Change "return (EXPR);" to "return EXPR;"
return is not a function, parentheses are not required.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There may be applications trying to seek
on the irnet character device, so we should
use noop_llseek to avoid returning an error
when the default llseek changes to no_llseek.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Samuel Ortiz <samuel@sortiz.org>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
This is an off by one. We would go past the end when we NUL terminate
the "value" string at end of the function. The "value" buffer is
allocated in irlan_client_parse_response() or
irlan_provider_parse_command().
CC: stable@kernel.org
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If irda_open_tsap() fails, the irda_bind() code tries to destroy
the ->ias_obj object by hand, but does so wrongly.
In particular, it fails to a) release the hashbin attached to the
object and b) reset the self->ias_obj pointer to NULL.
Fix both problems by using irias_delete_object() and explicitly
setting self->ias_obj to NULL, just as irda_release() does.
Reported-by: Tavis Ormandy <taviso@cmpxchg8b.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
struct net_device has its own struct net_device_stats member, so use
this one instead of a private copy in the irlan_cb struct.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
After skb is queued, its illegal to dereference it.
Cache skb->len into a temporary variable.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The PPP channel ops structure should be const.
Cleanup the declarations to use standard C99 format.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Device statistics have type unsigned long and several of the
device-specific parameters printed here have type __u32.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
