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[92.242.248.33]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-488f1d60ec2sm58105435e9.0.2026.04.15.06.37.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Apr 2026 06:37:09 -0700 (PDT) From: Jakov Novak To: linux-wireless@vger.kernel.org Cc: Kees Cook , Szymon Wilczek , Ingo Molnar , Johannes Berg , Thomas Gleixner , "John W . Linville" , Dan Williams , libertas-dev@lists.infradead.org, linux-kernel@vger.kernel.org, skhan@linuxfoundation.org, Jakov Novak , syzbot+c99d17aa44dbdba16ad2@syzkaller.appspotmail.com Subject: [PATCH v2 1/1] wifi: libertas: add wake_up() call to properly notify fw_wq during disconnect Date: Wed, 15 Apr 2026 15:36:28 +0200 Message-ID: <20260415133626.172702-4-jakovnovak30@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260415133626.172702-2-jakovnovak30@gmail.com> References: <20260415133626.172702-2-jakovnovak30@gmail.com> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This is necessary because the thread would be stuck if the firmware is not fully loaded before the if_usb_disconnect function is called. In that case if_usb_prog_firmware would be stuck in wait_event_interruptible and lbs_remove_card would also be stuck waiting for firmware loading to be done which was the original bug reported. Fixes: 954ee164f4f4 ("[PATCH] libertas: reorganize and simplify init sequence") Reported-and-tested-by: syzbot+c99d17aa44dbdba16ad2@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=c99d17aa44dbdba16ad2 Signed-off-by: Jakov Novak --- drivers/net/wireless/marvell/libertas/if_usb.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/net/wireless/marvell/libertas/if_usb.c b/drivers/net/wireless/marvell/libertas/if_usb.c index 245c902a7e42..8a6bf1365cfa 100644 --- a/drivers/net/wireless/marvell/libertas/if_usb.c +++ b/drivers/net/wireless/marvell/libertas/if_usb.c @@ -310,7 +310,6 @@ static void if_usb_disconnect(struct usb_interface *intf) struct lbs_private *priv = cardp->priv; cardp->surprise_removed = 1; + wake_up(&cardp->fw_wq); if (priv) { lbs_stop_card(priv); -- 2.53.0