Jiri Slaby 38237fd2be USB: serial/usb_wwan, fix tty NULL dereference ... tty_port_tty_get may return without any problems NULL. Handle this case and do not oops in usb_wwan_indat_callback by dereferencing it. The oops: Unable to handle kernel paging request for data at address 0x000000d8 Faulting instruction address: 0xc0175b3c Oops: Kernel access of bad area, sig: 11 [#1] PowerPC 40x Platform last sysfs file: /sys/devices/pci0000:00/0000:00:00.0/0000:01:00.0/0000:02:09.2/usb1/idVendor Modules linked in: NIP: c0175b3c LR: c0175e7c CTR: c0215c90 REGS: c77f7d50 TRAP: 0300 Not tainted (2.6.37-rc5) MSR: 00021030 <ME,CE,IR,DR> CR: 88482028 XER: 2000005f DEAR: 000000d8, ESR: 00000000 TASK = c7141b90[1149] 'wvdial' THREAD: c2750000 GPR00: 00021030 c77f7e00 c7141b90 00000000 0000000e 00000000 0000000e c0410680 GPR08: c683db00 00000000 00000001 c03c81f8 88482028 10073ef4 ffffffb9 ffffff94 GPR16: 00000000 fde036c0 00200200 00100100 00000001 ffffff8d c34fabcc 00000000 GPR24: c71120d4 00000000 00000000 0000000e 00021030 00000000 00000000 0000000e NIP [c0175b3c] tty_buffer_request_room+0x2c/0x194 LR [c0175e7c] tty_insert_flip_string_fixed_flag+0x3c/0xb0 Call Trace: [c77f7e00] [00000003] 0x3 (unreliable) [c77f7e30] [c0175e7c] tty_insert_flip_string_fixed_flag+0x3c/0xb0 [c77f7e60] [c0215df4] usb_wwan_indat_callback+0x164/0x170 ... References: https://bugzilla.kernel.org/show_bug.cgi?id=24582 Cc: Amit Shah <amitshah@gmx.net> Cc: baoyb <baoyb@avit.org.cn> Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>		2011-02-17 10:30:25 -08:00
..
aircable.c
ark3116.c
belkin_sa.c
belkin_sa.h
bus.c
ch341.c	USB: serial: handle Data Carrier Detect changes	2011-01-22 18:53:26 -08:00
ChangeLog.history
console.c
cp210x.c	USB: serial: handle Data Carrier Detect changes	2011-01-22 18:53:26 -08:00
cyberjack.c
cypress_m8.c
cypress_m8.h
digi_acceleport.c	USB: serial: handle Data Carrier Detect changes	2011-01-22 18:53:26 -08:00
empeg.c
ezusb_convert.pl
ezusb.c
ftdi_sio_ids.h	USB: ftdi_sio: Add VID=0x0647, PID=0x0100 for Acton Research spectrograph	2011-02-03 16:49:42 -08:00
ftdi_sio.c	USB: ftdi_sio: Add VID=0x0647, PID=0x0100 for Acton Research spectrograph	2011-02-03 16:49:42 -08:00
ftdi_sio.h
funsoft.c
garmin_gps.c
generic.c	USB: serial: handle Data Carrier Detect changes	2011-01-22 18:53:26 -08:00
hp4x.c
io_16654.h
io_edgeport.c	USB: io_edgeport: fix the reported firmware major and minor	2011-02-03 16:40:58 -08:00
io_edgeport.h
io_ionsp.h
io_tables.h	USB serial: add missing .usb_driver field in serial drivers	2011-01-22 18:38:59 -08:00
io_ti.c
io_ti.h
io_usbvend.h
ipaq.c
ipw.c
ir-usb.c
iuu_phoenix.c	USB serial: add missing .usb_driver field in serial drivers	2011-01-22 18:38:59 -08:00
iuu_phoenix.h
Kconfig
keyspan_pda.c	USB: serial: handle Data Carrier Detect changes	2011-01-22 18:53:26 -08:00
keyspan_usa26msg.h
keyspan_usa28msg.h
keyspan_usa49msg.h
keyspan_usa67msg.h
keyspan_usa90msg.h
keyspan.c
keyspan.h	USB serial: add missing .usb_driver field in serial drivers	2011-01-22 18:38:59 -08:00
kl5kusb105.c
kl5kusb105.h
kobil_sct.c
kobil_sct.h
Makefile
Makefile-keyspan_pda_fw
mct_u232.c
mct_u232.h
mos7720.c
mos7840.c
moto_modem.c	USB serial: add missing .usb_driver field in serial drivers	2011-01-22 18:38:59 -08:00
navman.c
omninet.c
opticon.c
option.c	USB: adding USB support for Cinterion's HC2x, EU3 and PH8 products	2011-01-22 18:40:21 -08:00
oti6858.c	USB serial: add missing .usb_driver field in serial drivers	2011-01-22 18:38:59 -08:00
oti6858.h
pl2303.c	USB: serial: handle Data Carrier Detect changes	2011-01-22 18:53:26 -08:00
pl2303.h	drivers: update to pl2303 usb-serial to support Motorola cables	2011-01-22 18:44:38 -08:00
qcaux.c	USB serial: add missing .usb_driver field in serial drivers	2011-01-22 18:38:59 -08:00
qcserial.c
safe_serial.c
sam-ba.c
siemens_mpi.c	USB serial: add missing .usb_driver field in serial drivers	2011-01-22 18:38:59 -08:00
sierra.c
spcp8x5.c	USB: serial: handle Data Carrier Detect changes	2011-01-22 18:53:26 -08:00
ssu100.c
symbolserial.c
ti_usb_3410_5052.c	USB: ti_usb: fix module removal	2011-02-03 16:40:59 -08:00
ti_usb_3410_5052.h
usb_debug.c	USB serial: add missing .usb_driver field in serial drivers	2011-01-22 18:38:59 -08:00
usb_wwan.c	USB: serial/usb_wwan, fix tty NULL dereference	2011-02-17 10:30:25 -08:00
usb-serial.c	USB serial: add missing .usb_driver field in serial drivers	2011-01-22 18:38:59 -08:00
usb-wwan.h
visor.c	USB: Add Samsung SGH-I500/Android modem ID switch to visor driver	2011-02-17 10:30:23 -08:00
visor.h
vivopay-serial.c
whiteheat.c
whiteheat.h
zio.c