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authorHolger Macht <hmacht@suse.de>2009-01-20 12:18:24 +0100
committerLen Brown <len.brown@intel.com>2009-02-06 22:08:15 -0500
commitfc5a9f8841ee87d93376ada5d73117d4d6a373ea (patch)
treeca1098636b4918c00a49faf34c4e0d6e99852296 /drivers/watchdog/w83977f_wdt.c
parent9e3a9d1ed8cc8db93e5c53e9a5b09065bd95de8b (diff)
ACPI: dock: Don't eval _STA on every show_docked sysfs read
Some devices trigger a DEVICE_CHECK on every evalutation of _STA. This can also be seen in commit 8b59560a3baf2e7c24e0fb92ea5d09eca92805db (ACPI: dock: avoid check _STA method). If an undock is processed, the dock driver sends a uevent and userspace might read the show_docked property in sysfs. This causes an evaluation of _STA of the particular device which causes the dock driver to immediately dock again. In any case, evaluation of _STA (show_docked) does not necessarily mean that we are docked, so check with the internal device structure. http://bugzilla.kernel.org/show_bug.cgi?id=12360 Signed-off-by: Holger Macht <hmacht@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/watchdog/w83977f_wdt.c')
0 files changed, 0 insertions, 0 deletions