linux/drivers/pcmcia
Steven Rostedt (Google) 292a089d78 treewide: Convert del_timer*() to timer_shutdown*()
Due to several bugs caused by timers being re-armed after they are
shutdown and just before they are freed, a new state of timers was added
called "shutdown".  After a timer is set to this state, then it can no
longer be re-armed.

The following script was run to find all the trivial locations where
del_timer() or del_timer_sync() is called in the same function that the
object holding the timer is freed.  It also ignores any locations where
the timer->function is modified between the del_timer*() and the free(),
as that is not considered a "trivial" case.

This was created by using a coccinelle script and the following
commands:

    $ cat timer.cocci
    @@
    expression ptr, slab;
    identifier timer, rfield;
    @@
    (
    -       del_timer(&ptr->timer);
    +       timer_shutdown(&ptr->timer);
    |
    -       del_timer_sync(&ptr->timer);
    +       timer_shutdown_sync(&ptr->timer);
    )
      ... when strict
          when != ptr->timer
    (
            kfree_rcu(ptr, rfield);
    |
            kmem_cache_free(slab, ptr);
    |
            kfree(ptr);
    )

    $ spatch timer.cocci . > /tmp/t.patch
    $ patch -p1 < /tmp/t.patch

Link: https://lore.kernel.org/lkml/20221123201306.823305113@linutronix.de/
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Pavel Machek <pavel@ucw.cz> [ LED ]
Acked-by: Kalle Valo <kvalo@kernel.org> [ wireless ]
Acked-by: Paolo Abeni <pabeni@redhat.com> [ networking ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-12-25 13:38:09 -08:00
..
bcm63xx_pcmcia.c treewide: Convert del_timer*() to timer_shutdown*() 2022-12-25 13:38:09 -08:00
bcm63xx_pcmcia.h
cardbus.c
cirrus.h
cistpl.c pcmcia: cistpl: Demote non-conformant kernel-doc headers to standard comments 2021-03-15 08:22:22 +01:00
cs_internal.h
cs.c driver core: make struct class.dev_uevent() take a const * 2022-11-24 17:12:15 +01:00
db1xxx_ss.c pcmcia: db1xxx_ss: Fix fall-through warning for Clang 2021-10-13 14:47:48 -05:00
ds.c pcmcia: use sysfs_emit{,_at} for sysfs output 2022-01-06 09:15:52 +01:00
electra_cf.c treewide: Convert del_timer*() to timer_shutdown*() 2022-12-25 13:38:09 -08:00
i82092.c pcmcia: Add __init/__exit annotations to module init/exit funcs 2022-09-22 16:45:25 +02:00
i82092aa.h
i82365.c
i82365.h
Kconfig pcmcia: remove AT91RM9200 Compact Flash driver 2022-09-27 08:12:16 +02:00
Makefile pcmcia: remove AT91RM9200 Compact Flash driver 2022-09-27 08:12:16 +02:00
max1600.c
max1600.h
o2micro.h
omap_cf.c treewide: Convert del_timer*() to timer_shutdown*() 2022-12-25 13:38:09 -08:00
pcmcia_cis.c pcmcia: hide the MAC address helpers if !NET 2021-11-22 14:02:52 +00:00
pcmcia_resource.c pcmcia: make pcmcia_release_io() void, as no-one is interested in return value 2022-01-02 19:01:37 +01:00
pd6729.c treewide: Convert del_timer*() to timer_shutdown*() 2022-12-25 13:38:09 -08:00
pd6729.h
pxa2xx_base.c ARM: pxa: pcmcia: move smemc configuration back to arch 2022-05-07 22:55:49 +02:00
pxa2xx_base.h
pxa2xx_mainstone.c
pxa2xx_sharpsl.c ARM: pxa: move pcmcia board data into mach-pxa 2022-04-19 21:34:05 +02:00
ricoh.h
rsrc_iodyn.c
rsrc_mgr.c
rsrc_nonstatic.c drivers/pcmcia: Fix typo in comment 2022-02-05 11:11:38 +01:00
sa11xx_base.c
sa11xx_base.h
sa1100_generic.c pcmcia: sa1100: Make sa11x0_drv_pcmcia_legacy_remove() return void 2022-09-22 16:23:51 +02:00
sa1100_generic.h
sa1100_h3600.c
sa1100_simpad.c
sa1111_badge4.c
sa1111_generic.c ARM: pxa: split up mach/hardware.h 2022-04-19 16:27:05 +02:00
sa1111_generic.h
sa1111_jornada720.c
sa1111_lubbock.c ARM: pxa: split up mach/hardware.h 2022-04-19 16:27:05 +02:00
sa1111_neponset.c
soc_common.c ARM: pxa/sa1100: move I/O space to PCI_IOBASE 2022-05-07 22:56:17 +02:00
soc_common.h ARM: pxa: move pcmcia board data into mach-pxa 2022-04-19 21:34:05 +02:00
socket_sysfs.c pcmcia: use sysfs_emit{,_at} for sysfs output 2022-01-06 09:15:52 +01:00
tcic.c
tcic.h
ti113x.h
topic.h
vg468.h
xxs1500_ss.c
yenta_socket.c treewide: Convert del_timer*() to timer_shutdown*() 2022-12-25 13:38:09 -08:00
yenta_socket.h