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d0a934b764
linux/drivers/hid
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David Herrmann d0a934b764 HID: input: return ENODATA if reading battery attrs fails 
power_supply core has the bad habit of calling our battery callbacks
from within power_supply_register(). Furthermore, if the callbacks
fail with an unhandled error code, it will skip any uevent that it
might currently process.
So if HID-core registers battery devices, an "add" uevent is generated
and the battery callbacks are called. These will gracefully fail due
to timeouts as they might still hold locks on event processing. One
could argue that this should be fixed in power_supply core, but the
least we can do is to signal ENODATA so power_supply core will just
skip the property and continue with the uevent.

This fixes a bug where "add" and "remove" uevents are skipped for
battery devices. upower is unable to track these devices and currently
needs to ignore them.

This patch also overwrites any other error code. I cannot see any reason
why we should forward protocol- or I/O-errors to the power_supply core.
We handle these errors in hid_ll_driver later, anyway, so just skip
them. power_supply core cannot do anything useful with them, anyway,
and we avoid skipping important uevents and confusing user-space.

Thanks a lot to Daniel Nicoletti for pushing and investigating
on this.

Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Anton Vorontsov <cbou@mail.ru>
Cc: David Woodhouse <dwmw2@infradead.org>
Reported-by: Daniel Nicoletti <dantti12@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-05-29 15:19:47 +02:00
..
i2c-hid HID: i2c-hid: fix length for set/get report in i2c hid 2013-04-04 09:59:32 +02:00
usbhid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2013-04-30 09:37:55 -07:00
hid-a4tech.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-apple.c Merge branches 'for-3.10/appleir', 'for-3.10/hid-debug', 'for-3.10/hid-driver-transport-cleanups', 'for-3.10/i2c-hid' and 'for-3.10/logitech' into for-linus 2013-04-30 10:12:44 +02:00
hid-appleir.c HID: appleir: add support for Apple ir devices 2013-04-18 19:06:20 -07:00
hid-aureal.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-axff.c HID: use hid_hw_request() instead of direct call to usbhid 2013-02-25 13:26:41 +01:00
hid-belkin.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-cherry.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-chicony.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-core.c HID: debug: fix RCU preemption issue 2013-05-06 13:07:33 +02:00
hid-cypress.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-debug.c HID: debug: fix RCU preemption issue 2013-05-06 13:07:33 +02:00
hid-dr.c HID: use hid_hw_request() instead of direct call to usbhid 2013-02-25 13:26:41 +01:00
hid-elecom.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-emsff.c HID: use hid_hw_request() instead of direct call to usbhid 2013-02-25 13:26:41 +01:00
hid-ezkey.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-gaff.c HID: use hid_hw_request() instead of direct call to usbhid 2013-02-25 13:26:41 +01:00
hid-generic.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-gyration.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-holtek-kbd.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-holtekff.c HID: use hid_hw_request() instead of direct call to usbhid 2013-02-25 13:26:41 +01:00
hid-hyperv.c Drivers: hid: hid-hyperv: Use consolidated GUID definitions 2013-01-25 11:17:31 -08:00
hid-icade.c HID: icade: u16 which never < 0 2013-04-24 16:32:27 +02:00
hid-ids.h Merge branches 'for-3.10/wiimote' and 'for-3.9/upstream-fixes' into for-linus 2013-04-30 10:19:21 +02:00
hid-input.c HID: input: return ENODATA if reading battery attrs fails 2013-05-29 15:19:47 +02:00
hid-kensington.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-keytouch.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-kye.c HID: use hid_hw_request() instead of direct call to usbhid 2013-02-25 13:26:41 +01:00
hid-lcpower.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-lenovo-tpkbd.c Merge branches 'for-3.10/multitouch', 'for-3.10/roccat' and 'for-3.10/upstream' into for-linus 2013-04-30 10:19:07 +02:00
hid-lg2ff.c HID: use hid_hw_request() instead of direct call to usbhid 2013-02-25 13:26:41 +01:00
hid-lg3ff.c HID: use hid_hw_request() instead of direct call to usbhid 2013-02-25 13:26:41 +01:00
hid-lg4ff.c Merge branches 'for-3.10/appleir', 'for-3.10/hid-debug', 'for-3.10/hid-driver-transport-cleanups', 'for-3.10/i2c-hid' and 'for-3.10/logitech' into for-linus 2013-04-30 10:12:44 +02:00
hid-lg.c Merge branches 'for-3.9/logitech', 'for-3.9/multitouch', 'for-3.9/ntrig', 'for-3.9/thingm' and 'for-3.9/upstream' into for-linus 2013-02-21 10:45:01 +01:00
hid-lg.h HID: hid-lg4ff: Adjust X axis input value accordingly to selected range. 2012-09-25 15:41:02 +02:00
hid-lgff.c HID: use hid_hw_request() instead of direct call to usbhid 2013-02-25 13:26:41 +01:00
hid-logitech-dj.c Merge branches 'for-3.10/appleir', 'for-3.10/hid-debug', 'for-3.10/hid-driver-transport-cleanups', 'for-3.10/i2c-hid' and 'for-3.10/logitech' into for-linus 2013-04-30 10:12:44 +02:00
hid-logitech-dj.h Revert "HID: Fix logitech-dj: missing Unifying device issue" 2013-03-01 14:14:59 +01:00
hid-magicmouse.c Merge branches 'for-3.10/appleir', 'for-3.10/hid-debug', 'for-3.10/hid-driver-transport-cleanups', 'for-3.10/i2c-hid' and 'for-3.10/logitech' into for-linus 2013-04-30 10:12:44 +02:00
hid-microsoft.c HID: Add PID for Japanese version of NE4K keyboard 2013-04-29 10:16:55 +02:00
hid-monterey.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-multitouch.c Merge branch 'for-3.10/mt-hybrid-finger-pen' into for-linus 2013-04-30 10:17:48 +02:00
hid-ntrig.c HID: use hid_hw_wait() instead of direct call to usbhid 2013-02-25 13:26:41 +01:00
hid-ortek.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-petalynx.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-picolcd_backlight.c HID: use hid_hw_request() instead of direct call to usbhid 2013-02-25 13:26:41 +01:00
hid-picolcd_cir.c HID: use hid_hw_request() instead of direct call to usbhid 2013-02-25 13:26:41 +01:00
hid-picolcd_core.c HID: use hid_hw_request() instead of direct call to usbhid 2013-02-25 13:26:41 +01:00
hid-picolcd_debugfs.c HID: use hid_hw_request() instead of direct call to usbhid 2013-02-25 13:26:41 +01:00
hid-picolcd_fb.c HID: use hid_hw_wait() instead of direct call to usbhid 2013-02-25 13:26:41 +01:00
hid-picolcd_lcd.c HID: use hid_hw_request() instead of direct call to usbhid 2013-02-25 13:26:41 +01:00
hid-picolcd_leds.c HID: use hid_hw_request() instead of direct call to usbhid 2013-02-25 13:26:41 +01:00
hid-picolcd.h Merge branches 'for-3.10/multitouch', 'for-3.10/roccat' and 'for-3.10/upstream' into for-linus 2013-04-30 10:19:07 +02:00
hid-pl.c HID: use hid_hw_request() instead of direct call to usbhid 2013-02-25 13:26:41 +01:00
hid-primax.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-prodikeys.c HID: use hid_hw_request() instead of direct call to usbhid 2013-02-25 13:26:41 +01:00
hid-ps3remote.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-roccat-arvo.c HID: roccat: rename roccat_common functions to roccat_common2 2012-06-28 10:34:01 +02:00
hid-roccat-arvo.h HID: roccat: correction and cleanup of HID feature reports 2011-06-13 12:52:57 +02:00
hid-roccat-common.c HID: roccat: rename roccat_common functions to roccat_common2 2012-06-28 10:34:01 +02:00
hid-roccat-common.h HID: roccat: rename roccat_common functions to roccat_common2 2012-06-28 10:34:01 +02:00
hid-roccat-isku.c HID: roccat: add support for IskuFX 2013-03-14 11:50:49 +01:00
hid-roccat-isku.h HID: roccat: add support for IskuFX 2013-03-14 11:50:49 +01:00
hid-roccat-kone.c HID: roccat: added media key support for Kone 2013-04-08 10:33:13 +02:00
hid-roccat-kone.h HID: roccat: added media key support for Kone 2013-04-08 10:33:13 +02:00
hid-roccat-koneplus.c HID: roccat: deprecate some Koneplus attributes 2012-11-12 15:30:28 +01:00
hid-roccat-koneplus.h HID: roccat: fix wrong attr size for koneplus tcu 2012-11-18 22:58:28 +01:00
hid-roccat-konepure.c HID: roccat: add support for Roccat Kone Pure gaming mouse 2013-03-14 11:50:49 +01:00
hid-roccat-konepure.h HID: roccat: add support for Roccat Kone Pure gaming mouse 2013-03-14 11:50:49 +01:00
hid-roccat-kovaplus.c HID: roccat: deprecate some Kovaplus attributes 2012-11-12 15:30:29 +01:00
hid-roccat-kovaplus.h HID: roccat: deprecate some Kovaplus attributes 2012-11-12 15:30:29 +01:00
hid-roccat-lua.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-roccat-lua.h HID: roccat: add support for Roccat Lua 2012-10-17 10:44:47 +02:00
hid-roccat-pyra.c HID: roccat: deprecated some Pyra attributes 2012-11-12 15:30:28 +01:00
hid-roccat-pyra.h HID: roccat: deprecated some Pyra attributes 2012-11-12 15:30:28 +01:00
hid-roccat-savu.c HID: roccat: enable Savu device reset 2012-11-05 13:17:39 +01:00
hid-roccat-savu.h HID: roccat: added sensor sysfs attribute for Savu 2012-07-20 09:50:42 +02:00
hid-roccat.c HID: roccat: fix comments on chardevice 2013-03-14 11:50:49 +01:00
hid-saitek.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-samsung.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-sensor-hub.c HID: use hid_hw_wait() instead of direct call to usbhid 2013-02-25 13:26:41 +01:00
hid-sjoy.c HID: use hid_hw_request() instead of direct call to usbhid 2013-02-25 13:26:41 +01:00
hid-sony.c Merge branches 'for-3.9/sony' and 'for-3.9/steelseries' into for-linus 2013-02-21 10:45:52 +01:00
hid-speedlink.c HID: Kconfig: Remove explicit transport layer dependencies 2013-02-25 13:26:40 +01:00
hid-steelseries.c HID: hid-steelseries fix led class build issue 2013-05-03 10:26:52 +02:00
hid-sunplus.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-thingm.c HID: Kconfig: Remove explicit transport layer dependencies 2013-02-25 13:26:40 +01:00
hid-tivo.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-tmff.c HID: use hid_hw_request() instead of direct call to usbhid 2013-02-25 13:26:41 +01:00
hid-topseed.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-twinhan.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-uclogic.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-wacom.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-waltop.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hid-wiimote-core.c HID: wiimote: parse reduced status reports 2013-04-04 09:38:43 +02:00
hid-wiimote-debug.c HID: Fix uninitialized variable "size" in hid-wiimote-debug 2013-01-18 10:59:24 +01:00
hid-wiimote-ext.c HID: wiimote: fix nunchuck button parser 2013-02-18 10:41:52 +01:00
hid-wiimote.h HID: wiimote: Allow direct DRM debug access 2011-11-22 23:11:10 +01:00
hid-zpff.c HID: use hid_hw_request() instead of direct call to usbhid 2013-02-25 13:26:41 +01:00
hid-zydacron.c HID: Use module_hid_driver macro 2013-01-03 10:27:31 +01:00
hidraw.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-02-26 20:16:07 -08:00
Kconfig Merge branches 'for-3.10/multitouch', 'for-3.10/roccat' and 'for-3.10/upstream' into for-linus 2013-04-30 10:19:07 +02:00
Makefile Merge branches 'for-3.10/multitouch', 'for-3.10/roccat' and 'for-3.10/upstream' into for-linus 2013-04-30 10:19:07 +02:00
uhid.c HID: uhid: make creating devices work on 64/32 systems 2013-02-18 11:28:16 +01:00