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 12457470102; Tue, 21 Jul 2026 19:41:31 +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=1784662892; cv=none; b=gV9+1jIm7b5/hPgrIKktK+KVZoXsRWbfSqFqBDjF5pkH6FZJ/pc/QibWhXOjQsS7ulP9hTWV9kjQSM2cpd0pGPMKM0mIiJEoFwGXPTkks11gvZRt7Y0vrSp4QFuYaFg7lt3mIbT+1HmwaZGHrIhu6xx54ggirHgTFEbnxuB9Xl8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784662892; c=relaxed/simple; bh=dIEGLlk2FGacQOqYGGUjDH0L4NqQxtCsVjXCKqmCP/g=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=MgV48XzWqmSEILeK2fy/GVev6cYu3Hfi6cqu/0uI6qVYpam3zuhLIM8nSJCCeyDcfvBxE9tEXB/aKpMEkUUieyYRb/9PDxkZkUjxBKWEgw1Btut8ss0hRQ8mKBMNbkoqebewelZCfxHr1qQK+FdMv6IojEQSI7MeNbuDHTAFCsM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=x+ImfWVg; 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="x+ImfWVg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 78AC41F000E9; Tue, 21 Jul 2026 19:41:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784662891; bh=OUS5p/E/N6VML9NxuAUBuze/oG10SuMt0EPFYFpMJyQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=x+ImfWVg3lXj5ubwl5/vpdJVi8rEwI+NYBEzSEV9EO3Gco6nWImxpmKuLZsphwBTu xC4/+86wKkjor4yGxuH8xWm658F9HoBGtHw2xly81cUov+FMwFZqMpIrCgdZQUizZC LwMQX8UZJ9mfqHaZ3U72UosVJbak3Noo0vzeOZBw= 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 6.12 0599/1276] mailbox: imx: Forward the timeout/ error in imx_mu_generic_tx() Date: Tue, 21 Jul 2026 17:17:22 +0200 Message-ID: <20260721152459.519692641@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260721152446.065700225@linuxfoundation.org> References: <20260721152446.065700225@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 6.12-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 aa9a299859d6a0..056c71ec97d1de 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