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 4A263382F25; Sat, 17 Oct 2026 17:04:12 +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=1792256653; cv=none; b=HwRF+d7vBD3301s1oXfeND1g9zFkCfjFNdiCAwro9EuXuF+2S2aB2xWCv+Wna4GHItKHkHpg5sSRx9ujolss1o1Vs6qQRcCmrbnjThUvVIukupFFSemawnGQYh2f52OTeh7JuCWoeQZp36oJN46/QgWTviFBPlvIVixAyNZ0vOs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792256653; c=relaxed/simple; bh=3qDIacb9+uhDTJROxN8w96T3zBdHLgZLSOMc1axnmgs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=WTyZyLnAAJDW4f1iqfswOgncGehY4T6JTVbwK/KVvh/ukyBoiG80gsR9OIhHjDEHM+cpFnZM/V+zWZ8cVjMDU5CRiEINsVnkGlc19jJPWWOx8GKWkFqMYeA2ydVKfcObiRa+Y/2z/4+d1+74y6CB75Di/Bkk4hf03AQkhIiMx54= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=J2dVZ5Co; 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="J2dVZ5Co" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9A44D1F000C4; Sat, 17 Oct 2026 17:04:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1792256652; bh=2rVtIpZ6WNEVZRLyshVx2WREUPpojGxZ2hivnsyPasI=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=J2dVZ5CoJjFyEp4codWQ8ME/aAjLJzKTnAXHfZBBhFRTlV5aWqptDhgse9q4QveXu U2PnEr1E7XscMwyEZ9YlwNVBHLjZD5KoK4MU81+gP1009JzJGZs3WYxS3K4xLjGqkH Thg3NW4jVCapTSaL9+VVpAlm80WluetgBrxSWHWM= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Runyu Xiao , Miquel Raynal Subject: [PATCH 6.6 0308/1674] mtd: rawnand: cadence: Initialize IRQ state before requesting IRQ Date: Sat, 17 Oct 2026 17:43:00 +0200 Message-ID: <20261017160439.025136999@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261017160431.119607952@linuxfoundation.org> References: <20261017160431.119607952@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 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Runyu Xiao commit 21f027016b1290d13c30b198ae7a00e6b3d1d5a5 upstream. The Cadence NAND interrupt handler uses both the IRQ lock and completion object. Registering the IRQ before initializing them leaves a window in which a pending interrupt can access uninitialized synchronization state. Initialize them before registering the handler. Fixes: ec4ba01e894d ("mtd: rawnand: Add new Cadence NAND driver to MTD subsystem") Cc: stable@vger.kernel.org Assisted-by: Codex:GPT-5 Signed-off-by: Runyu Xiao Signed-off-by: Miquel Raynal Signed-off-by: Greg Kroah-Hartman --- drivers/mtd/nand/raw/cadence-nand-controller.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) --- a/drivers/mtd/nand/raw/cadence-nand-controller.c +++ b/drivers/mtd/nand/raw/cadence-nand-controller.c @@ -2893,6 +2893,9 @@ static int cadence_nand_init(struct cdns goto free_buf_desc; } + spin_lock_init(&cdns_ctrl->irq_lock); + init_completion(&cdns_ctrl->complete); + if (devm_request_irq(cdns_ctrl->dev, cdns_ctrl->irq, cadence_nand_isr, IRQF_SHARED, "cadence-nand-controller", cdns_ctrl)) { @@ -2901,9 +2904,6 @@ static int cadence_nand_init(struct cdns goto free_buf; } - spin_lock_init(&cdns_ctrl->irq_lock); - init_completion(&cdns_ctrl->complete); - ret = cadence_nand_hw_init(cdns_ctrl); if (ret) goto disable_irq;