From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 801463358C6; Tue, 21 Jul 2026 18:14:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784657654; cv=none; b=ChFdfvMybwwImqayhgFoSTFrMcBMQsmmcLomrPsOY7f6CCPbhdQD+aEmjRKhSJvqvFJrfRuLb/i1DmGvB7UOE69LBqrn9EvVxPAhxMskAe8ofMgT8vhMi9lnERVxp+eDQy0A529HxU5hn48H1surW8Wq+Moik0XpcrKjzOratYM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784657654; c=relaxed/simple; bh=D9Llx6kye9OiPsgQ7x9BrqmtglXFA0xXJowhQRkAp98=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=WtSPTK7Wru/I6WVahyLWvbW5VyIsuJI3vm7P/s2L4gF/SBumyLNmvYo7HQrkBdDxPyhhiug+Aa7V1ma9zH84uLjY5FNg2lsmUlEj57So11vbaCwdIaeW5HHpouP1eMfIAT7UaKqglutnFzK132zSFcQSCAL7ccsgQ0ffnYfu7sA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=qKjaodxO; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="qKjaodxO" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E6D3F1F000E9; Tue, 21 Jul 2026 18:14:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784657653; bh=4kMzu0Wu9XENt2M+wy1MIwlTJLODEgGbcm9ZASHA9ac=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=qKjaodxO5B6Ti+rtaxINkdHPLc3XqaPqE0fYYgdracJEQ8gFeZ0JBSTj9wAhG1sDx 9lTGbKekgvmH5fG36ZqISkAzE0HUy2RImIltAIJOSPIoImXBaWvcp/MTMjm4Yocpic helb/zdGeje9hjs/ePhI/Z3ex+k9d6oZpocCTUKA= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Sebastian Andrzej Siewior , Jassi Brar , Sasha Levin Subject: [PATCH 6.18 0847/1611] mailbox: imx: Forward the timeout/ error in imx_mu_generic_tx() Date: Tue, 21 Jul 2026 17:16:03 +0200 Message-ID: <20260721152534.437008233@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260721152514.750365251@linuxfoundation.org> References: <20260721152514.750365251@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sebastian Andrzej Siewior [ Upstream commit 82ef9a635d7130ca27ec9dd88c16afc39c83a4e8 ] imx_mu_generic_tx() for the IMX_MU_TYPE_TXDB_V2 type polls on a register which may timeout and is recognized as an error. This error is siltently dropped and not dropped to the caller. Forward the error to the caller. Fixes: b5ef17917f3a7 ("mailbox: imx: fix TXDB_V2 channel race condition") Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Jassi Brar Signed-off-by: Sasha Levin --- drivers/mailbox/imx-mailbox.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/mailbox/imx-mailbox.c b/drivers/mailbox/imx-mailbox.c index 003f9236c35e09..a80cb2c9df6ee9 100644 --- a/drivers/mailbox/imx-mailbox.c +++ b/drivers/mailbox/imx-mailbox.c @@ -229,6 +229,7 @@ static int imx_mu_generic_tx(struct imx_mu_priv *priv, u32 val; int ret, count; + ret = 0; switch (cp->type) { case IMX_MU_TYPE_TX: imx_mu_write(priv, *arg, priv->dcfg->xTR + cp->idx * 4); @@ -261,7 +262,7 @@ static int imx_mu_generic_tx(struct imx_mu_priv *priv, return -EINVAL; } - return 0; + return ret; } static int imx_mu_generic_rx(struct imx_mu_priv *priv, -- 2.53.0