AuxXxilium/linux_dsm_epyc7002
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cb29529ea0
linux_dsm_epyc7002/drivers/tty/serial
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Tkhai Kirill cb29529ea0 sunsu: Fix panic in case of nonexistent port at "console=ttySY" cmdline option 
If a machine has X (X < 4) sunsu ports and cmdline
option "console=ttySY" is passed, where X < Y <= 4,
than the following panic happens:

Unable to handle kernel NULL pointer dereference
TPC: <sunsu_console_setup+0x78/0xe0>
RPC: <sunsu_console_setup+0x74/0xe0>
I7: <register_console+0x378/0x3e0>
Call Trace:
 [0000000000453a38] register_console+0x378/0x3e0
 [0000000000576fa0] uart_add_one_port+0x2e0/0x340
 [000000000057af40] su_probe+0x160/0x2e0
 [00000000005b8a4c] platform_drv_probe+0xc/0x20
 [00000000005b6c2c] driver_probe_device+0x12c/0x220
 [00000000005b6da8] __driver_attach+0x88/0xa0
 [00000000005b4df4] bus_for_each_dev+0x54/0xa0
 [00000000005b5a54] bus_add_driver+0x154/0x260
 [00000000005b7190] driver_register+0x50/0x180
 [00000000006d250c] sunsu_init+0x18c/0x1e0
 [00000000006c2668] do_one_initcall+0xe8/0x160
 [00000000006c282c] kernel_init_freeable+0x12c/0x1e0
 [0000000000603764] kernel_init+0x4/0x100
 [0000000000405f64] ret_from_syscall+0x1c/0x2c
 [0000000000000000]           (null)

1)Fix the panic;
2)Increment registered port number every successful
probe.

Signed-off-by: Kirill Tkhai <tkhai@yandex.ru>
CC: David Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-01 13:31:36 -08:00
..
8250 serial: ralink: adds support for the serial core found on ralink wisoc 2013-01-30 00:15:34 -05:00
cpm_uart TTY: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
jsm TTY: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
21285.c TTY: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
68328serial.c tty: serial/68328serial.c: remove unnecessary null pointer check 2013-01-17 17:20:09 -08:00
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 TTY: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
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 serial/arc-uart: Miscll DT related updates (Grant's review comments) 2013-02-13 08:37:49 -08:00
atmel_serial.c TTY: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
bcm63xx_uart.c TTY: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
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: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
clps711x.c TTY: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
crisv10.c tty: serial/crisv10.c: remove unnecessary null pointer check 2013-01-17 17:20:10 -08:00
crisv10.h
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 TTY: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
icom.h
ifx6x60.c Merge 3.8-rc5 into tty-next 2013-01-25 13:27:36 -08:00
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 drivers/serial: add GENERIC_HARDIRQS dependency 2013-02-08 12:24:57 -08:00
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: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
max3100.c tty/serial patches for 3.9-rc1 2013-02-21 13:41:04 -08:00
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: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
mpsc.c TTY: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
mrst_max3110.c TTY: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
mrst_max3110.h max3110: add sysrq support 2011-08-26 11:01:15 -07:00
msm_serial_hs.c TTY: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
msm_serial.c TTY: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
msm_serial.h
msm_smd_tty.c TTY: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
mux.c TTY: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
mxs-auart.c Merge 3.8-rc5 into tty-next 2013-01-25 13:27:36 -08:00
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 tty: of_serial: unexport tegra_serial_handle_break 2013-02-05 11:13:16 -08:00
omap-serial.c OMAP/serial: Fix incorrect Rx FIFO threshold setting, LSR validation on Tx, and Tx FIFO IRQ generation 2013-02-05 11:13:16 -08:00
pch_uart.c serial: pch_uart: fix sysrq handling for pch_uart 2013-01-25 08:52:23 -08:00
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 Merge 3.8-rc5 into tty-next 2013-01-25 13:27:36 -08:00
samsung.h serial: samsung: merge probe() function from all SoC specific extensions 2011-12-23 10:07:00 +09:00
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 tty/serial patches for 3.9-rc1 2013-02-21 13:41:04 -08:00
serial_core.c tty: Remove ancient hardpps() 2013-02-13 10:17:06 -08:00
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: assume CONFIG_OF 2013-02-15 14:47:04 -08:00
sh-sci.c TTY: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
sh-sci.h serial: sh-sci: use serial_port_in/out vs sci_in/out. 2012-03-30 19:50:15 +09:00
sirfsoc_uart.c serial: sirf: only use lookup table to set baudrate when ioclk=150MHz 2013-01-17 17:18:55 -08:00
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: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
sunsab.h
sunsu.c sunsu: Fix panic in case of nonexistent port at "console=ttySY" cmdline option 2013-03-01 13:31:36 -08:00
sunzilog.c TTY: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
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 3.8-rc5 into tty-next 2013-01-25 13:27:36 -08:00
xilinx_uartps.c serial: xilinx_uartps: Remove leftover __exit_p() 2013-01-22 09:25:33 -08:00
zs.c TTY: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
zs.h