From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 B976D3F9267; Fri, 15 May 2026 16:10:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778861423; cv=none; b=CFSCCTJJtYxcguZG+ow2cVOXPwEYGHvsqxEYzKHz+n8Wx2H8uc6yM6nfVLAbyHINdGRpOK3Mu237OGaKeEw68mR8ymny8dMm26g7NSkMU90ocJzCBbhfpqAcFPM9uB7MqF2iFOukbZ70B71mKN5UMu+Y5vDMspK/He0IdEggxDk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778861423; c=relaxed/simple; bh=7adJOyR0JqXgTkvvu06otyfMudTPMWzFAyGtjyyqHN4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ShiVmfgJ3oqfbbMXOqbHlzLS2X2zr/3wBdKIJfivbS7xNq6EYE4CtNuGZVYptrlxQbsIPpY01w/o9zShoon19G1ModGTl0assFem+TICg0IjA8go2WAOA9F7NRdVO47Q3N7PQdygDxXaXKW9wVgoE3oOnPWekPyFdVeh0oMFLB8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=mcQl7BKD; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="mcQl7BKD" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E051CC2BCB0; Fri, 15 May 2026 16:10:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1778861423; bh=7adJOyR0JqXgTkvvu06otyfMudTPMWzFAyGtjyyqHN4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mcQl7BKDLX8P1Vy+erc5Bld7ws1M3KkZ5KhzcKsHWHEM7F8dG8yn7I5QWcKjLzeI1 jI1KTsJpSiA758GkqVqa9HH128YEwHYPk6MApE9AZH4wwP1kpbkIKUHOBmlOKt1Ybf +BKzoO4k2V1hK3X+MRKqPHd8vvtMILk1II8ra+B0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Laurentiu Palcu , Johan Hovold , Mark Brown Subject: [PATCH 6.6 322/474] spi: dln2: fix controller deregistration Date: Fri, 15 May 2026 17:47:11 +0200 Message-ID: <20260515154721.977434125@linuxfoundation.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260515154715.053014143@linuxfoundation.org> References: <20260515154715.053014143@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org 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: Johan Hovold commit c353020fbfa8514ee91a6de2d88de4e5edca5803 upstream. Make sure to deregister the controller before disabling it to allow SPI device drivers to do I/O during deregistration. Fixes: 3d8c0d749da3 ("spi: add support for DLN-2 USB-SPI adapter") Cc: stable@vger.kernel.org # 4.0 Cc: Laurentiu Palcu Signed-off-by: Johan Hovold Link: https://patch.msgid.link/20260409120419.388546-12-johan@kernel.org Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman --- drivers/spi/spi-dln2.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) --- a/drivers/spi/spi-dln2.c +++ b/drivers/spi/spi-dln2.c @@ -761,7 +761,7 @@ static int dln2_spi_probe(struct platfor pm_runtime_set_active(&pdev->dev); pm_runtime_enable(&pdev->dev); - ret = devm_spi_register_controller(&pdev->dev, host); + ret = spi_register_controller(host); if (ret < 0) { dev_err(&pdev->dev, "Failed to register host\n"); goto exit_register; @@ -786,10 +786,16 @@ static void dln2_spi_remove(struct platf struct spi_controller *host = platform_get_drvdata(pdev); struct dln2_spi *dln2 = spi_controller_get_devdata(host); + spi_controller_get(host); + + spi_unregister_controller(host); + pm_runtime_disable(&pdev->dev); if (dln2_spi_enable(dln2, false) < 0) dev_err(&pdev->dev, "Failed to disable SPI module\n"); + + spi_controller_put(host); } #ifdef CONFIG_PM_SLEEP