From patchwork Tue Jul 25 06:04:47 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Antipov X-Patchwork-Id: 707971 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CBD7EEB64DD for ; Tue, 25 Jul 2023 06:05:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231975AbjGYGF6 (ORCPT ); Tue, 25 Jul 2023 02:05:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37196 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231996AbjGYGFs (ORCPT ); Tue, 25 Jul 2023 02:05:48 -0400 Received: from forward103b.mail.yandex.net (forward103b.mail.yandex.net [178.154.239.150]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E72D41BCC for ; Mon, 24 Jul 2023 23:05:40 -0700 (PDT) Received: from mail-nwsmtp-smtp-production-main-45.myt.yp-c.yandex.net (mail-nwsmtp-smtp-production-main-45.myt.yp-c.yandex.net [IPv6:2a02:6b8:c12:552b:0:640:471f:0]) by forward103b.mail.yandex.net (Yandex) with ESMTP id 419B56003C; Tue, 25 Jul 2023 09:05:39 +0300 (MSK) Received: by mail-nwsmtp-smtp-production-main-45.myt.yp-c.yandex.net (smtp/Yandex) with ESMTPSA id X5DgcxaDR0U0-BHwb9MU5; Tue, 25 Jul 2023 09:05:38 +0300 X-Yandex-Fwd: 1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1690265138; bh=jEwRI6wSKypyUo4XaDhg84FxPURxjsnDa2yCIlf3xWs=; h=Message-ID:Date:In-Reply-To:Cc:Subject:References:To:From; b=orR+nCl617xuEaV1K6llnDJZWpDJgH7pUvxYLrMM5lXuZbeBrPlkHSBhlt3LyVySQ KbxX1PoHVtMO/aaqhIxodBN7euizYQ6Qqqz0d7XaPAv/Ffw/FyBTtbxDCg6WQxORvR NNzto9hh1wTXkko8akrPLJMwdjclI5wLL0T5Ylmc= Authentication-Results: mail-nwsmtp-smtp-production-main-45.myt.yp-c.yandex.net; dkim=pass header.i=@yandex.ru From: Dmitry Antipov To: Dan Williams Cc: Kalle Valo , linux-wireless@vger.kernel.org, lvc-project@linuxtesting.org, Dmitry Antipov Subject: [PATCH 5/6] [v2] wifi: libertas: handle possible spu_write_u16() errors Date: Tue, 25 Jul 2023 09:04:47 +0300 Message-ID: <20230725060531.72968-5-dmantipov@yandex.ru> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230725060531.72968-1-dmantipov@yandex.ru> References: <20230725060531.72968-1-dmantipov@yandex.ru> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Check and handle (well, report at least, as it's done through the rest of the module) possible 'spu_write_u16()' errors in 'if_spi_e2h()'. Found by Linux Verification Center (linuxtesting.org) with SVACE. Signed-off-by: Dmitry Antipov --- drivers/net/wireless/marvell/libertas/if_spi.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/marvell/libertas/if_spi.c b/drivers/net/wireless/marvell/libertas/if_spi.c index 3d53e444ba19..8690b0114e23 100644 --- a/drivers/net/wireless/marvell/libertas/if_spi.c +++ b/drivers/net/wireless/marvell/libertas/if_spi.c @@ -826,11 +826,16 @@ static void if_spi_e2h(struct if_spi_card *card) goto out; /* re-enable the card event interrupt */ - spu_write_u16(card, IF_SPI_HOST_INT_STATUS_REG, - ~IF_SPI_HICU_CARD_EVENT); + err = spu_write_u16(card, IF_SPI_HOST_INT_STATUS_REG, + ~IF_SPI_HICU_CARD_EVENT); + if (err) + goto out; /* generate a card interrupt */ - spu_write_u16(card, IF_SPI_CARD_INT_CAUSE_REG, IF_SPI_CIC_HOST_EVENT); + err = spu_write_u16(card, IF_SPI_CARD_INT_CAUSE_REG, + IF_SPI_CIC_HOST_EVENT); + if (err) + goto out; lbs_queue_event(priv, cause & 0xff); out: