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Miri Korenblit b68df31ce6 wifi: iwlwifi: mld: properly handle async notification in op mode start
From the moment that we have ALIVE, we can receive notification that
are handled asynchronously.

Some notifications (for example iwl_rfi_support_notif) requires an
operational FW. So we need to make sure that they were handled in
iwl_op_mode_mld_start before we stop the FW. Flush the async_handlers_wk
there to achieve that.

Also, if loading the FW in op mode start failed, we need to cancel
these notifications, as they are from a dead FW.

More than that, not doing so can cause us to access freed memory
if async_handlers_wk is executed after ieee80211_free_hw is called.

Fix this by canceling all async notifications if a failure occurred in
init (after ALIVE).

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Link: https://patch.msgid.link/20250423091408.a8f63d983466.Ifd77d9c1a29fdd278b0a7bfc2709dd5d5e5efdb1@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
History 2025-04-23 15:37:40 +02:00
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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 reStructuredText 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.