linux/drivers/input
Dmitry Torokhov 0fbc9fdb7e Input: ads7846 - check proper condition when freeing gpio
When driver uses custom pendown detection method gpio_pendown is not
set up and so we should not try to free it, otherwise we are presented
with:

------------[ cut here ]------------
WARNING: at drivers/gpio/gpiolib.c:1258 gpio_free+0x100/0x12c()
Modules linked in:
[<c0061208>] (unwind_backtrace+0x0/0xe4) from [<c0091f58>](warn_slowpath_common+0x4c/0x64)
[<c0091f58>] (warn_slowpath_common+0x4c/0x64) from [<c0091f88>](warn_slowpath_null+0x18/0x1c)
[<c0091f88>] (warn_slowpath_null+0x18/0x1c) from [<c024e610>](gpio_free+0x100/0x12c)
[<c024e610>] (gpio_free+0x100/0x12c) from [<c03e9fbc>](ads7846_probe+0xa38/0xc5c)
[<c03e9fbc>] (ads7846_probe+0xa38/0xc5c) from [<c02cff14>](spi_drv_probe+0x18/0x1c)
[<c02cff14>] (spi_drv_probe+0x18/0x1c) from [<c028bca4>](driver_probe_device+0xc8/0x184)
[<c028bca4>] (driver_probe_device+0xc8/0x184) from [<c028bdc8>](__driver_attach+0x68/0x8c)
[<c028bdc8>] (__driver_attach+0x68/0x8c) from [<c028b4c8>](bus_for_each_dev+0x48/0x74)
[<c028b4c8>] (bus_for_each_dev+0x48/0x74) from [<c028ae08>](bus_add_driver+0xa0/0x220)
[<c028ae08>] (bus_add_driver+0xa0/0x220) from [<c028c0c0>](driver_register+0xa8/0x134)
[<c028c0c0>] (driver_register+0xa8/0x134) from [<c0050550>](do_one_initcall+0xcc/0x1a4)
[<c0050550>] (do_one_initcall+0xcc/0x1a4) from [<c00084e4>](kernel_init+0x14c/0x214)
[<c00084e4>] (kernel_init+0x14c/0x214) from [<c005b494>](kernel_thread_exit+0x0/0x8)
---[ end trace 4053287f8a5ec18f ]---

Also rearrange ads7846_setup_pendown() to have only one exit point
returning success.

Reported-by: Sourav Poddar <sourav.poddar@ti.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Reviewed-by: Charulatha V <charu@ti.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-02-11 00:58:24 -08:00
..
gameport Input: gameport - convert to use common workqueue instead of a thread 2010-11-18 00:25:49 -08:00
joystick Merge branch 'next' into for-linus 2011-01-11 22:01:45 -08:00
keyboard Input: tegra-kbc - fix keymap entry for LeftMeta key 2011-01-28 22:31:57 -08:00
misc Input: rotary_encoder - use proper irqflags 2011-02-02 23:01:00 -08:00
mouse Input: synaptics - retry failed resets when reconnecting 2011-01-28 22:32:07 -08:00
serio Input: serio - clear pending rescans after sysfs driver rebind 2011-02-02 23:01:52 -08:00
tablet Input: wacom - pass touch resolution to clients through input_absinfo 2011-01-25 18:04:05 -08:00
touchscreen Input: ads7846 - check proper condition when freeing gpio 2011-02-11 00:58:24 -08:00
apm-power.c Input: use pr_fmt and pr_<level> 2010-11-30 23:10:26 -08:00
evbug.c Input: use pr_fmt and pr_<level> 2010-11-30 23:10:26 -08:00
evdev.c Merge branch 'next' into for-linus 2011-01-06 22:34:59 -08:00
ff-core.c Input: use pr_fmt and pr_<level> 2010-11-30 23:10:26 -08:00
ff-memless.c Input: use pr_fmt and pr_<level> 2010-11-30 23:10:26 -08:00
fixp-arith.h
input-compat.c Input: refactor evdev 32bit compat to be shareable with uinput 2008-10-27 22:03:42 -04:00
input-compat.h [IA64] Remove COMPAT_IA32 support 2010-02-08 10:42:17 -08:00
input-mt.c input: mt: Move tracking and pointer emulation to input-mt 2010-12-16 10:41:38 +01:00
input-polldev.c Input: use pr_fmt and pr_<level> 2010-11-30 23:10:26 -08:00
input.c Revert "Input: do not pass injected events back to the originating handler" 2011-02-02 23:04:27 -08:00
joydev.c Input: use pr_fmt and pr_<level> 2010-11-30 23:10:26 -08:00
Kconfig Merge branch 'xen/fbdev' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen 2009-12-10 09:34:40 -08:00
Makefile Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rydberg/input-mt into next 2010-12-16 09:17:48 -08:00
mousedev.c Input: use pr_fmt and pr_<level> 2010-11-30 23:10:26 -08:00
sparse-keymap.c Input: sparse-keymap - fix KEY_VSW handling in sparse_keymap_setup 2011-01-20 23:13:29 -08:00
xen-kbdfront.c Input: use pr_fmt and pr_<level> 2010-11-30 23:10:26 -08:00