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authorKent Overstreet <koverstreet@google.com>2013-05-13 14:45:08 -0700
committerBenjamin LaHaise <bcrl@kvack.org>2013-07-30 11:53:11 -0400
commitbec68faaf3ba74ed0dcd5dc3a881b30aec542973 (patch)
treefc8704d99fea0108346de7c1ca2500ac7199f1ae /drivers/usb/gadget/f_acm.c
parent723be6e39d14254bb5bb9f422b434566d359fa6e (diff)
downloadblackbird-op-linux-bec68faaf3ba74ed0dcd5dc3a881b30aec542973.tar.gz
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aio: io_cancel() no longer returns the io_event
Originally, io_event() was documented to return the io_event if cancellation succeeded - the io_event wouldn't be delivered via the ring buffer like it normally would. But this isn't what the implementation was actually doing; the only driver implementing cancellation, the usb gadget code, never returned an io_event in its cancel function. And aio_complete() was recently changed to no longer suppress event delivery if the kiocb had been cancelled. This gets rid of the unused io_event argument to kiocb_cancel() and kiocb->ki_cancel(), and changes io_cancel() to return -EINPROGRESS if kiocb->ki_cancel() returned success. Also tweak the refcounting in kiocb_cancel() to make more sense. Signed-off-by: Kent Overstreet <koverstreet@google.com> Cc: Zach Brown <zab@redhat.com> Cc: Felipe Balbi <balbi@ti.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Jens Axboe <axboe@kernel.dk> Cc: Asai Thambi S P <asamymuthupa@micron.com> Cc: Selvan Mani <smani@micron.com> Cc: Sam Bradshaw <sbradshaw@micron.com> Cc: Jeff Moyer <jmoyer@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Benjamin LaHaise <bcrl@kvack.org> Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
Diffstat (limited to 'drivers/usb/gadget/f_acm.c')
0 files changed, 0 insertions, 0 deletions
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