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linux/drivers/tty/serial
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Ezequiel Garcia dbd2df859a serial: 8250_dw: Add valid clk pointer check 
Commit ffc3ae6dd "serial: 8250_dw: Enable runtime PM" introduced runtime
PM management, which enables/disables the clk without checking if the clk
is valid. However, this driver allows to be probed without a defined clk,
using clock-frequency, as a fallback.

Therefore, on platforms that are device tree probed using clock-frequency
instead of clk, we get an ugly NULL pointer dereference.

This patch fixes it by simply adding a check before accessing the clk api.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-20 11:54:55 -07:00
..
8250
serial: 8250_dw: Add valid clk pointer check
2013-05-20 11:54:55 -07:00
cpm_uart
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
jsm
TTY: jsm, remove superfluous check
2013-03-18 16:17:20 -07:00
21285.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
68328serial.c
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
2013-05-10 07:22:35 -07:00
altera_jtaguart.c
tty: serial: altera_jtaguart: Simplify altera_jtaguart_init()
2013-02-05 11:13:51 -08:00
altera_uart.c
tty: serial: altera_uart: Simplify altera_uart_init()
2013-02-05 11:13:50 -08:00
amba-pl010.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
amba-pl011.c
ARM: arm-soc: late cleanups
2013-05-07 11:22:14 -07:00
apbuart.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
apbuart.h
…
ar933x_uart.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
arc_uart.c
TTY: cleanup tty->hw_stopped uses
2013-03-18 16:24:30 -07:00
atmel_serial.c
tty: atmel_serial_probe(): index of atmel_ports[] fix
2013-03-15 13:23:29 -07:00
bcm63xx_uart.c
MIPS: BCM63XX: merge bcm63xx_clk.h into bcm63xx/clk.c
2013-05-08 01:19:04 +02:00
bfin_sport_uart.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
bfin_sport_uart.h
tty: bfin-sport-uart: Rx interrupt is not called always with irq disabled.
2011-12-09 19:05:33 -08:00
bfin_uart.c
TTY: serial/bfin_uart, unbreak build with KGDB enabled
2013-03-18 16:24:30 -07:00
clps711x.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
crisv10.c
crisv10: use counts from tty_port
2013-03-18 16:26:33 -07:00
crisv10.h
crisv10: use counts from tty_port
2013-03-18 16:26:33 -07:00
dz.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
dz.h
…
efm32-uart.c
serial/efm32: parse location property
2013-01-21 13:56:46 -08:00
icom.c
driver: tty: serial: remove cast for kzalloc return value
2013-03-18 17:09:37 -07:00
icom.h
…
ifx6x60.c
tty: ifx6x60: Remove unused suspend/resume callbacks
2013-03-18 16:29:29 -07:00
ifx6x60.h
serial:ifx6x60:Prevent data transfer when IFX6x60 port is shutdown
2012-11-01 08:50:01 -07:00
imx.c
serial: imx: fix uninitialized variable warning
2013-02-18 11:05:14 -08:00
ioc3_serial.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
ioc4_serial.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
ip22zilog.c
TTY: ip22zilog, fix tty_flip_buffer_push call
2013-01-16 07:36:47 -08:00
ip22zilog.h
…
Kconfig
tty: serial: fix typo "SERIAL_S3C2412"
2013-03-12 08:53:23 -07:00
kgdb_nmi.c
kgdb: remove #include <linux/serial_8250.h> from kgdb.h
2013-02-04 15:35:26 -08:00
kgdboc.c
KGDB/KDB fixes and cleanups
2012-10-13 11:16:58 +09:00
lantiq.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
lpc32xx_hs.c
serial: lpc32xx: Fix fallout from tty_port conversion
2013-01-18 16:05:15 -08:00
m32r_sio_reg.h
m32r: relocate drivers back out of 8250 dir
2012-02-08 15:04:32 -08:00
m32r_sio.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
m32r_sio.h
TTY: serial, include pci.h in m32r_sio
2012-03-08 11:47:02 -08:00
Makefile
serial: rp2: New driver for Comtrol RocketPort 2 cards
2013-01-17 17:28:39 -08:00
max310x.c
tty: max310x: Use dev_pm_ops
2013-03-18 16:29:29 -07:00
max3100.c
serial: max3100: use spi_get_drvdata() and spi_set_drvdata()
2013-04-05 15:49:39 -07:00
mcf.c
serial: mcf: Add support RS485 in ColdFire serial driver
2013-01-15 22:56:34 -08:00
mfd.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
mpc52xx_uart.c
tty: serial: mpc5xxx: fix PSC clock name bug
2013-03-12 08:53:22 -07:00
mpsc.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
mrst_max3110.c
tty: mrst_max3110: Use dev_pm_ops
2013-03-18 16:29:29 -07:00
mrst_max3110.h
max3110: add sysrq support
2011-08-26 11:01:15 -07:00
msm_serial_hs.c
TTY: serial/msm_serial_hs, remove unused tty
2013-03-18 16:24:30 -07:00
msm_serial.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
msm_serial.h
tty: remove invalid location line in file header
2011-04-19 16:33:36 -07:00
msm_smd_tty.c
TTY: msm_smd_tty, clean up activate/shutdown
2013-03-18 16:19:44 -07:00
mux.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
mxs-auart.c
ARM: arm-soc device tree changes, part 2
2013-05-07 11:06:17 -07:00
netx-serial.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
nwpserial.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
of_serial.c
serial: of_serial: Handle auto-flow-control property
2013-03-25 16:36:48 -07:00
omap-serial.c
OMAP/serial: Revert bad fix of Rx FIFO threshold granularity
2013-04-03 13:25:11 -07:00
pch_uart.c
serial: pch_uart: add console poll support
2013-03-15 13:55:23 -07:00
pmac_zilog.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
pmac_zilog.h
tty/serial/pmac_zilog: Fix suspend & resume
2011-12-16 11:10:01 +11:00
pnx8xxx_uart.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
pxa.c
serial: pxa: fine-tune clk useage
2013-01-25 08:52:23 -08:00
rp2.c
serial: rp2: New driver for Comtrol RocketPort 2 cards
2013-01-17 17:28:39 -08:00
sa1100.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
samsung.c
tty: serial/samsung: fix modular build
2013-04-11 13:14:37 -07:00
samsung.h
tty: serial/samsung: fix modular build
2013-04-11 13:14:37 -07:00
sb1250-duart.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
sc26xx.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
sccnxp.c
serial: sccnxp: Replace pdata.init/exit with regulator API
2013-04-15 11:04:07 -07:00
serial_core.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2013-05-01 17:51:54 -07:00
serial_ks8695.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
serial_txx9.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
serial-tegra.c
serial: tegra: Convert to devm_ioremap_resource()
2013-03-15 13:55:22 -07:00
sh-sci.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
sh-sci.h
serial: sh-sci: remove obsolete Kconfig macros
2013-03-25 14:06:45 -07:00
sirfsoc_uart.c
tty/serial/sirf: fix MODULE_DEVICE_TABLE
2013-04-23 10:43:18 -07:00
sirfsoc_uart.h
serial: sirf: only use lookup table to set baudrate when ioclk=150MHz
2013-01-17 17:18:55 -08:00
sn_console.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
suncore.c
tty: sparc: rename drivers/tty/serial/suncore.h -> include/linux/sunserialcore.h
2012-02-10 10:44:35 -08:00
sunhv.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
sunsab.c
TTY: serial, stop accessing potential NULLs
2013-03-18 17:09:37 -07:00
sunsab.h
…
sunsu.c
serial: sunsu: add missing platform_driver_unregister() when module exit
2013-05-04 17:39:48 -07:00
sunzilog.c
TTY: serial, stop accessing potential NULLs
2013-03-18 17:09:37 -07:00
sunzilog.h
…
timbuart.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
timbuart.h
…
uartlite.c
tty: serial: uartlite: Support uartlite on big and little endian systems
2013-02-13 08:38:45 -08:00
ucc_uart.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
vr41xx_siu.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
vt8500_serial.c
Merge 3.9-rc3 into tty-next
2013-03-21 16:07:34 -07:00
xilinx_uartps.c
Merge 3.9-rc5 into tty-next
2013-04-01 12:01:10 -07:00
zs.c
TTY: switch tty_flip_buffer_push
2013-01-15 22:30:15 -08:00
zs.h
…