linux/include
Guennadi Liakhovetski 438d8908b3 gpiolib: better rmmod infrastructure
As long as one or more GPIOs on a gpio chip are used its driver should not be
unloaded.  The existing mechanism (gpiochip_remove failure) doesn't address
that, since rmmod can no longer be made to fail by having the cleanup code
report errors.  Module usecounts are the solution.

Assuming standard "initialize struct to zero" policies, this change won't
affect SOC platform drivers.  However, drivers for external chips (on I2C and
SPI busses) should be updated if they can be built as modules.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de>
[ gpio_ensure_requested() needs to update module usecounts too ]
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-28 08:58:34 -07:00
..
acpi
asm-alpha alpha: teach the compiler that BUG doesn't return 2008-04-28 08:58:27 -07:00
asm-arm mm: introduce pte_special pte bit 2008-04-28 08:58:23 -07:00
asm-avr32 mm: introduce pte_special pte bit 2008-04-28 08:58:23 -07:00
asm-blackfin [Blackfin] arch: add include/boot .gitignore files 2008-04-25 08:29:11 +08:00
asm-cris cris: add constfy to pgd_offset() 2008-04-28 08:58:28 -07:00
asm-frv mm: introduce pte_special pte bit 2008-04-28 08:58:23 -07:00
asm-generic gpiolib: better rmmod infrastructure 2008-04-28 08:58:34 -07:00
asm-h8300
asm-ia64 hugetlbfs: common code update for s390 2008-04-28 08:58:25 -07:00
asm-m32r mm: introduce pte_special pte bit 2008-04-28 08:58:23 -07:00
asm-m68k mm: introduce pte_special pte bit 2008-04-28 08:58:23 -07:00
asm-m68knommu
asm-mips serial: add VR41xx SIU setup for serial console 2008-04-28 08:58:30 -07:00
asm-mn10300 mm: introduce pte_special pte bit 2008-04-28 08:58:23 -07:00
asm-parisc mm: introduce pte_special pte bit 2008-04-28 08:58:23 -07:00
asm-powerpc hugetlbfs: common code update for s390 2008-04-28 08:58:25 -07:00
asm-ppc mm: introduce pte_special pte bit 2008-04-28 08:58:23 -07:00
asm-s390 s390: implement pte special bit 2008-04-28 08:58:23 -07:00
asm-sh hugetlbfs: common code update for s390 2008-04-28 08:58:25 -07:00
asm-sparc mm: introduce pte_special pte bit 2008-04-28 08:58:23 -07:00
asm-sparc64 hugetlbfs: common code update for s390 2008-04-28 08:58:25 -07:00
asm-um mm: introduce pte_special pte bit 2008-04-28 08:58:23 -07:00
asm-v850
asm-x86 hugetlbfs: common code update for s390 2008-04-28 08:58:25 -07:00
asm-xtensa mm: introduce pte_special pte bit 2008-04-28 08:58:23 -07:00
crypto [CRYPTO] aes: Export generic setkey 2008-04-21 10:19:34 +08:00
keys KEYS: Fix the comment to match the file name in rxrpc-type.h. 2008-04-21 22:43:55 +00:00
linux i2o: remove static inline forward declarations 2008-04-28 08:58:34 -07:00
math-emu
media V4L/DVB (7677): saa7134: Add/fix Beholder entries 2008-04-24 14:09:46 -03:00
mtd
net IPv6 support for NFS server export caches 2008-04-23 16:13:36 -04:00
pcmcia
rdma IB: convert struct class_device to struct device 2008-04-19 19:10:30 -07:00
rxrpc
scsi [SCSI] rework scsi_target allocation 2008-04-22 15:16:31 -05:00
sound [ALSA] Define MPU401 registers in sound/mpu401_uart.h 2008-04-24 12:38:22 +02:00
video
xen xen: add balloon driver 2008-04-24 23:57:33 +02:00
Kbuild