linux-toradex.git/drivers/serial, branch v2.6.21.4 Linux kernel for Apalis and Colibri modules [PATCH] SERIAL SUNHV: Add an ID string. 2007-05-23T21:32:52+00:00 David Miller davem@davemloft.net 2007-05-15T08:40:09+00:00 18d588ffa31437efc49d0b0412905a9a304aa2d1 The 'compatible' property can be SUNW,sun4v-console as well as 'qcn'. Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Chris Wright <chrisw@sous-sol.org> 
The 'compatible' property can be SUNW,sun4v-console as
well as 'qcn'.

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
8250: fix possible deadlock between serial8250_handle_port() and serial8250_interrupt() 2007-04-24T15:23:09+00:00 Jiri Kosina jkosina@suse.cz 2007-04-23T21:41:21+00:00 4bf3631cdb012591667ab927fcd7719d92837833 Commit 40b36daa introduced possibility that serial8250_backup_timeout() -> serial8250_handle_port() locks port.lock without disabling irqs, thus allowing deadlock against interrupt handler (port.lock is acquired in serial8250_interrupt()). Spotted by lockdep. Signed-off-by: Jiri Kosina <jkosina@suse.cz> Cc: Dave Jones <davej@codemonkey.org.uk> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Commit 40b36daa introduced possibility that serial8250_backup_timeout() ->
serial8250_handle_port() locks port.lock without disabling irqs, thus
allowing deadlock against interrupt handler (port.lock is acquired in
serial8250_interrupt()).

Spotted by lockdep.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Cc: Dave Jones <davej@codemonkey.org.uk>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Alex Williamson <alex.williamson@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Char: icom, mark __init as __devinit 2007-04-24T15:23:09+00:00 Jiri Slaby jirislaby@gmail.com 2007-04-23T21:41:20+00:00 98f85d30ced96ac466f30419de8b3fac341ebe75 Two functions are called from __devinit context, but they are marked as __init. Fix this. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Two functions are called from __devinit context, but they are marked as
__init. Fix this.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
do not truncate irq number for icom adapter 2007-04-24T15:23:08+00:00 Olaf Hering olaf@aepfle.de 2007-04-23T21:41:15+00:00 179fb0c726fa34a1ecbb9385a01c704babb9c0ab irq values are u32, not u8. Large irq numbers will be truncated, free_irq may free a different irq. Remove incorrectly sized struct member and use the one from pci_dev. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
irq values are u32, not u8. Large irq numbers will be truncated,
free_irq may free a different irq.

Remove incorrectly sized struct member and use the one from pci_dev.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix possible NULL pointer access in 8250 serial driver 2007-04-24T15:23:07+00:00 Taku Izumi izumi2005@soft.fujitsu.com 2007-04-23T21:41:00+00:00 fdc30b3d448bf86dd45f9df3e8ac0d36a3bdd9b2 I encountered the following kernel panic. The cause of this problem was NULL pointer access in check_modem_status() in 8250.c. I confirmed this problem is fixed by the attached patch, but I don't know this is the correct fix. sadc[4378]: NaT consumption 2216203124768 [1] Modules linked in: binfmt_misc dm_mirror dm_mod thermal processor fan container button sg e100 eepro100 mii ehci_hcd ohci_hcd Pid: 4378, CPU 0, comm: sadc psr : 00001210085a2010 ifs : 8000000000000289 ip : [<a000000100482071>] Not tainted ip is at check_modem_status+0xf1/0x360 Call Trace: [<a000000100013940>] show_stack+0x40/0xa0 [<a0000001000145a0>] show_regs+0x840/0x880 [<a0000001000368e0>] die+0x1c0/0x2c0 [<a000000100036a30>] die_if_kernel+0x50/0x80 [<a000000100037c40>] ia64_fault+0x11e0/0x1300 [<a00000010000bdc0>] ia64_leave_kernel+0x0/0x280 [<a000000100482070>] check_modem_status+0xf0/0x360 [<a000000100482300>] serial8250_get_mctrl+0x20/0xa0 [<a000000100478170>] uart_read_proc+0x250/0x860 [<a0000001001c16d0>] proc_file_read+0x1d0/0x4c0 [<a0000001001394b0>] vfs_read+0x1b0/0x300 [<a000000100139cd0>] sys_read+0x70/0xe0 [<a00000010000bc20>] ia64_ret_from_syscall+0x0/0x20 [<a000000000010620>] __kernel_syscall_via_break+0x0/0x20 Fix the possible NULL pointer access in check_modem_status() in 8250.c. The check_modem_status() would access 'info' member of uart_port structure, but it is not initialized before uart_open() is called. The check_modem_status() can be called through /proc/tty/driver/serial before uart_open() is called. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Taku Izumi <izumi2005@soft.fujitsu.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
I encountered the following kernel panic.  The cause of this problem was
NULL pointer access in check_modem_status() in 8250.c.  I confirmed this
problem is fixed by the attached patch, but I don't know this is the
correct fix.

sadc[4378]: NaT consumption 2216203124768 [1]
Modules linked in: binfmt_misc dm_mirror dm_mod thermal processor fan
container button sg e100 eepro100 mii ehci_hcd ohci_hcd

    Pid: 4378, CPU 0, comm: sadc
    psr : 00001210085a2010 ifs : 8000000000000289 ip : [<a000000100482071>]
    Not tainted
    ip is at check_modem_status+0xf1/0x360

    Call Trace:
    [<a000000100013940>] show_stack+0x40/0xa0
    [<a0000001000145a0>] show_regs+0x840/0x880
    [<a0000001000368e0>] die+0x1c0/0x2c0
    [<a000000100036a30>] die_if_kernel+0x50/0x80
    [<a000000100037c40>] ia64_fault+0x11e0/0x1300
    [<a00000010000bdc0>] ia64_leave_kernel+0x0/0x280
    [<a000000100482070>] check_modem_status+0xf0/0x360
    [<a000000100482300>] serial8250_get_mctrl+0x20/0xa0
    [<a000000100478170>] uart_read_proc+0x250/0x860
    [<a0000001001c16d0>] proc_file_read+0x1d0/0x4c0
    [<a0000001001394b0>] vfs_read+0x1b0/0x300
    [<a000000100139cd0>] sys_read+0x70/0xe0
    [<a00000010000bc20>] ia64_ret_from_syscall+0x0/0x20
    [<a000000000010620>] __kernel_syscall_via_break+0x0/0x20

Fix the possible NULL pointer access in check_modem_status() in 8250.c.  The
check_modem_status() would access 'info' member of uart_port structure, but it
is not initialized before uart_open() is called.  The check_modem_status() can
be called through /proc/tty/driver/serial before uart_open() is called.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Taku Izumi <izumi2005@soft.fujitsu.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
[PATCH] add Fujitsu Siemens Tablet PC devices to 8250_pnp.c 2007-03-23T18:01:22+00:00 Danny Kukawka dkukawka@suse.de 2007-03-23T07:10:01+00:00 6149dd5cfaea9889060f2c039eaf45e2b39f7fb3 Adds device ids of two Fujitsu Siemens Tablet PCs to pnp_dev_table Signed-off-by: Danny Kukawka <dkukawka@suse.de> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Adds device ids of two Fujitsu Siemens Tablet PCs to pnp_dev_table

Signed-off-by: Danny Kukawka <dkukawka@suse.de>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
serial: Fix sh-sci break interrupt/sysrq handling. 2007-03-14T04:22:37+00:00 Paul Mundt lethal@linux-sh.org 2007-03-14T04:22:37+00:00 0b3d4ef6fe43b75d4b2a6fc4b814cf03aa248e13 The sh-sci sci_br_interrupt() handler was failing to call in to uart_handle_break(), which was something that only the SH-3 path was doing, fix that up. Additionally, SUPPORT_SYSRQ seems to have moved down too far, move it back to the top so uart_handle_break() and friends aren't no-ops. Signed-off-by: Paul Mundt <lethal@linux-sh.org> 
The sh-sci sci_br_interrupt() handler was failing to call
in to uart_handle_break(), which was something that only
the SH-3 path was doing, fix that up.

Additionally, SUPPORT_SYSRQ seems to have moved down too
far, move it back to the top so uart_handle_break() and
friends aren't no-ops.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
[PATCH] 2.6 Altix: console fix for CONFIG_DEBUG_SHIRQ usage 2007-03-08T15:39:15+00:00 Pat Gefre pfg@sgi.com 2007-03-08T04:41:29+00:00 f70c81d4ddb0d300abc252cb594198d3c797a5e1 The sn console driver was snagged by the use of CONFIG_DEBUG_SHIRQ! The request_irq() immediate call to the interrupt handler caused another attempt to lock the port lock - deadlock. This is a patch to fix that. Signed-off-by: Patrick Gefre <pfg@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
The sn console driver was snagged by the use of CONFIG_DEBUG_SHIRQ!

The request_irq() immediate call to the interrupt handler caused
another attempt to lock the port lock - deadlock.

This is a patch to fix that.

Signed-off-by: Patrick Gefre <pfg@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
[PATCH] m68knommu: fix work queues in mcfserial.c driver 2007-03-07T02:08:38+00:00 Greg Ungerer gerg@snapgear.com 2007-03-07T01:28:13+00:00 28580df03e18c33dd29af83c23c1d52f3df320f1 Fix work queue code to support new model. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Fix work queue code to support new model.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
[PATCH] m68knommu: set GPIO lines for serial ports on 5282 in mcfserial.c 2007-03-07T02:08:38+00:00 Greg Ungerer gerg@snapgear.com 2007-03-07T01:28:13+00:00 ebfcfef44e4a759dd08a4b5e28848787b5530c0c For the Freescale M5282 ColdFire, Port UA Pin Assignment Register should set to UART mode. Patch submitted by David Wu <davidwu@arcturusnetworks.com>. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
For the Freescale M5282 ColdFire,
Port UA Pin Assignment Register should set to UART mode.
Patch submitted by David Wu <davidwu@arcturusnetworks.com>.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>