mei: hbm: drop capability response on early shutdown
authorAlexander Usyskin <alexander.usyskin@intel.com>
Mon, 6 Jun 2022 14:42:24 +0000 (17:42 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 22 Jun 2022 12:22:03 +0000 (14:22 +0200)
commit2399481a13a7ccb414a1e287a0c800b51d2343e4
treecd25104d543bf6b789b64761a795493c8b6b0024
parent93e6c2cbcd0894fde4983177fdf40b0ce776eecd
mei: hbm: drop capability response on early shutdown

commit 68553650bc9c57c7e530c84e5b2945e9dfe1a560 upstream.

Drop HBM responses also in the early shutdown phase where
the usual traffic is allowed.
Extend the rule that drop HBM responses received during the shutdown
phase by also in MEI_DEV_POWERING_DOWN state.
This resolves the stall if the driver is stopping in the middle
of the link initialization or link reset.

Drop the capabilities response on early shutdown.

Fixes: 6d7163f2c49f ("mei: hbm: drop hbm responses on early shutdown")
Cc: <stable@vger.kernel.org>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20220606144225.282375-2-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/misc/mei/hbm.c