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8341f2f222
linux/drivers/tty
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Matthias Kaehlcke 8341f2f222 sysrq: Use panic() to force a crash 
sysrq_handle_crash() currently forces a crash by dereferencing a
NULL pointer, which is undefined behavior in C. Just call panic()
instead, which is simpler and doesn't depend on compiler specific
handling of the undefined behavior.

Remove the comment on why the RCU lock needs to be released, it isn't
accurate anymore since the crash now isn't handled by the page fault
handler (for reference: the comment was added by commit 984cf355ae
("sysrq: Fix warning in sysrq generated crash.")). Releasing the lock
is still good practice though.

Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-11-27 11:16:35 +01:00
..
hvc tty: hvc: hvc_write() fix break condition 2018-09-10 18:04:31 +02:00
ipwireless ipwireless: switch to ->[sg]et_serial() 2018-10-13 00:50:31 -04:00
serdev serdev: add dev_pm_domain_attach|detach() 2018-07-15 12:23:53 +02:00
serial serial: imx: fix error handling in console_setup 2018-11-27 09:56:20 +01:00
vt TTY/Serial fixes for 4.20-rc2 2018-11-10 13:32:14 -06:00
amiserial.c kill TIOCSERGSTRUCT 2018-10-13 00:50:53 -04:00
cyclades.c cyclades: switch to ->[sg]et_serial() 2018-10-13 00:50:30 -04:00
ehv_bytechan.c tty: Convert to using %pOFn instead of device_node.name 2018-09-18 16:07:25 +02:00
goldfish.c headers: separate linux/mod_devicetable.h from linux/platform_device.h 2018-07-07 17:52:26 +02:00
isicom.c isicom: switch to ->[sg]et_serial() 2018-10-13 00:50:31 -04:00
Kconfig Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2018-04-09 09:04:10 -07:00
Makefile tty: remove bfin_jtag_comm and hvc_bfin_jtag drivers 2018-03-26 15:57:24 +02:00
mips_ejtag_fdc.c tty: Remove redundant license text 2017-11-08 13:08:12 +01:00
moxa.c moxa: switch to ->[sg]et_serial() 2018-10-13 00:50:32 -04:00
moxa.h tty: moxa: Add support for CMSPAR 2017-11-28 15:32:33 +01:00
mxser.c mxser: switch to ->[sg]et_serial() 2018-10-13 00:50:32 -04:00
mxser.h
n_gsm.c change semantics of ldisc ->compat_ioctl() 2018-10-13 00:50:53 -04:00
n_hdlc.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
n_null.c tty: Remove redundant license text 2017-11-08 13:08:12 +01:00
n_r3964.c change semantics of ldisc ->compat_ioctl() 2018-10-13 00:50:53 -04:00
n_tracerouter.c tty: Remove redundant license text 2017-11-08 13:08:12 +01:00
n_tracesink.c tty: Remove redundant license text 2017-11-08 13:08:12 +01:00
n_tracesink.h tty: Remove redundant license text 2017-11-08 13:08:12 +01:00
n_tty.c tty: wipe buffer if not echoing data 2018-10-11 19:50:00 +02:00
nozomi.c tty/nozomi: fix inconsistent indentation 2018-04-25 14:54:26 +02:00
pty.c pty: fix compat ioctls 2018-10-13 00:50:51 -04:00
rocket_int.h
rocket.c tty: rocket: Fix possible buffer overwrite on register_PCI 2018-08-02 10:11:32 +02:00
rocket.h
synclink_gt.c synclink_gt(): fix compat_ioctl() 2018-10-13 00:50:52 -04:00
synclink.c synclink: reduce pointless checks in ->ioctl() 2018-10-13 00:50:43 -04:00
synclinkmp.c synclink: reduce pointless checks in ->ioctl() 2018-10-13 00:50:43 -04:00
sysrq.c sysrq: Use panic() to force a crash 2018-11-27 11:16:35 +01:00
tty_audit.c audit: eliminate audit_enabled magic number comparison 2018-06-19 10:43:55 -04:00
tty_baudrate.c termios, tty/tty_baudrate.c: fix buffer overrun 2018-11-08 03:36:45 -08:00
tty_buffer.c tty: wipe buffer. 2018-10-11 19:50:00 +02:00
tty_io.c TTY/Serial patches for 4.20-rc1 2018-10-29 10:42:20 -07:00
tty_ioctl.c move compat handling of tty ioctls to tty_compat_ioctl() 2018-09-14 11:12:17 -04:00
tty_jobctrl.c
tty_ldisc.c proc: introduce proc_create_seq{,_data} 2018-05-16 07:23:35 +02:00
tty_ldsem.c atomic/tty: Fix up atomic abuse in ldsem 2018-06-28 21:07:55 +09:00
tty_mutex.c
tty_port.c tty_port: Remove incorrect whitespace after comments 2018-09-18 16:07:25 +02:00
vcc.c