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authorHenrique de Moraes Holschuh <[email protected]>2007-10-30 17:46:24 -0200
committerLen Brown <[email protected]>2007-11-05 13:07:11 -0500
commitfc589a3ce5f38db6239c147da4f9172a25575ecc (patch)
tree3732f557e21ef93787a0ebfcad4323ec00165dea /lib/debugobjects.c
parentb856f5b8c022b75bb0504a8c1ce16a5f1656e08b (diff)
ACPI: thinkpad-acpi: allow for syscall restart in sysfs handlers
Map an mutex_lock_interruptible() error return into ERESTARTSYS, as the only possible error from mutex_lock_interruptible is EINTR, and that will only happen if signal_pending() causes the mutex lock attempt to abort. This still allows signals to be delivered ASAP, which is much nicer than just doing mutex_lock, and still shadows userspace from EINTR when SA_RESTART is active. Problem reported by Peter Jordan. Signed-off-by: Henrique de Moraes Holschuh <[email protected]> Cc: Jean Delvare <[email protected]> Cc: Peter Jordan <[email protected]> Cc: Richard Neill <[email protected]> Signed-off-by: Len Brown <[email protected]>
Diffstat (limited to 'lib/debugobjects.c')
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