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| author | Ming Lei <ming.lei@canonical.com> | 2012-08-04 06:01:16 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-08-16 22:13:18 +0200 |
| commit | 65710cb6ea315b3ef76a8a3da7be99afcf58d2bb (patch) | |
| tree | 40043563aca5fa81fbc1f04f16ea887b6b372212 /sound | |
| parent | debugfs: make __create_file static (diff) | |
| download | linux-65710cb6ea315b3ef76a8a3da7be99afcf58d2bb.tar.xz linux-65710cb6ea315b3ef76a8a3da7be99afcf58d2bb.zip | |
firmware loader: simplify pages ownership transfer
This patch doesn't transfer ownership of pages' buffer to the
instance of firmware until the firmware loading is completed,
which will simplify firmware_loading_store a lot, so help
to introduce the following cache_firmware and uncache_firmware
mechanism during system suspend-resume cycle.
In fact, this patch fixes one bug: if writing data into
firmware loader device is bypassed between writting 1 and 0 to
'loading', OOPS will be triggered without the patch.
Also handle the vmap failure case, and add some comments to make
code more readable.
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound')
0 files changed, 0 insertions, 0 deletions