Benjamin Berg 744451c162 Bluetooth: hci_sync: Push sync command cancellation to workqueue
syzbot reported that hci_cmd_sync_cancel may sleep from the wrong
context. To avoid this, create a new work item that pushes the relevant
parts into a different context.

Note that we keep the old implementation with the name
__hci_cmd_sync_cancel as the sleeping behaviour is desired in some
cases.

Reported-and-tested-by: syzbot+485cc00ea7cf41dfdbf1@syzkaller.appspotmail.com
Fixes: c97a747efc ("Bluetooth: btusb: Cancel sync commands for certain URB errors")
Signed-off-by: Benjamin Berg <bberg@redhat.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2021-12-22 23:01:27 +01:00
…
…
2021-11-14 13:56:52 -08:00
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Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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