[PATCH 0/4] gpiolib: some fixup patches

[Alexandre Courbot <gnurou@gmail.com>]

This short series is a fixup to patch 6/9 of my previous series ("gpiolib: use 
descriptors internally"), which mainly addresses issues raised by Linus W. in 
this patch and a few other minor ones caught while proof-reading gpiolib.

First patch is the most significant. It mostly avoids oopses when passing an 
invalid GPIO to some functions. Also gpio_get/set_value*() now return 0 when 
given an invalid GPIO number instead of oopsing. I tend to think that's an 
improvement, but if it's not please let me know.

Ideally these patches should be melded into the above-mentioned patch since 
they were intended to become a new revision, but I leave that decision to 
Grant's discretion.

This patchset has been thoroughly tested on Tegra 2/Ventana with a GPIO 
backlight driver and the sysfs interface.

Alexandre Courbot (4):
  gpiolib: check descriptors validity before use
  gpiolib: use const parameters when possible
  gpiolib: move comment to right function
  gpiolib: rename local offset variables to "hwgpio"

 drivers/gpio/gpiolib.c | 165 ++++++++++++++++++++++++++-----------------------
 1 file changed, 87 insertions(+), 78 deletions(-)

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1.8.1.3