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 35B6B1B395F; Mon, 10 Mar 2025 18:17:18 +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=1741630638; cv=none; b=Xu28fFLEk2R549k0LaH8cgerx8lDIfZWUtc1T2oZ4FGVZHQHeriClsT47VQRsSNsdNGA2lkRAdP13WDCTbu3vNa4Y0vdgcu16Dwy8cNiEf0j5HohiOvVmUjBxaBFO/RoGLfScR1njs8PgLxVDGaF3VZOZ4Q0ju/m5Ils9TLxjQc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741630638; c=relaxed/simple; bh=3IvJimSHoWp8bB0fEdY0rJWWhDy4REMKjdI1wRZKuGQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=iTQwcyulmToM8cLJYelMH5eOlmTXwxcVT0OZlP27IYdy4sw5fShLV6l3ukdbcTZh/G9sccSTCCG4UDthXortj6IJoyC19pBSFds0Rv+OeNIPWayrpVi+AHrDjzwPaPxi2ed54iuLgDPbyqBKsUw4mfhuLmKHQ0PFXj03dlkbqdg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=QEtbk602; 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="QEtbk602" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B0E35C4CEE5; Mon, 10 Mar 2025 18:17:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1741630638; bh=3IvJimSHoWp8bB0fEdY0rJWWhDy4REMKjdI1wRZKuGQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QEtbk6024rF1OGBh8q8kK8Haz6BUr/zjpozu2pvNrUCzgpMibx5PNAEUXwPkP6Rwv rlmvcBQUsEwwUSgiWJ7MHkzeCNJfj+aj1uAOBkwzo+AYo/Io+3TDzwo1wMruMIqG8Z 1u0Vfv0TOD0EVgt1//AWldEdjD3AZP2pB9SeSris= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Niravkumar L Rabara , Miquel Raynal Subject: [PATCH 5.15 482/620] mtd: rawnand: cadence: fix error code in cadence_nand_init() Date: Mon, 10 Mar 2025 18:05:28 +0100 Message-ID: <20250310170604.598706516@linuxfoundation.org> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250310170545.553361750@linuxfoundation.org> References: <20250310170545.553361750@linuxfoundation.org> User-Agent: quilt/0.68 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 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Niravkumar L Rabara commit 2b9df00cded911e2ca2cfae5c45082166b24f8aa upstream. Replace dma_request_channel() with dma_request_chan_by_mask() and use helper functions to return proper error code instead of fixed -EBUSY. Fixes: ec4ba01e894d ("mtd: rawnand: Add new Cadence NAND driver to MTD subsystem") Cc: stable@vger.kernel.org Signed-off-by: Niravkumar L Rabara Signed-off-by: Miquel Raynal Signed-off-by: Greg Kroah-Hartman --- drivers/mtd/nand/raw/cadence-nand-controller.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) --- a/drivers/mtd/nand/raw/cadence-nand-controller.c +++ b/drivers/mtd/nand/raw/cadence-nand-controller.c @@ -2866,11 +2866,10 @@ static int cadence_nand_init(struct cdns dma_cap_set(DMA_MEMCPY, mask); if (cdns_ctrl->caps1->has_dma) { - cdns_ctrl->dmac = dma_request_channel(mask, NULL, NULL); - if (!cdns_ctrl->dmac) { - dev_err(cdns_ctrl->dev, - "Unable to get a DMA channel\n"); - ret = -EBUSY; + cdns_ctrl->dmac = dma_request_chan_by_mask(&mask); + if (IS_ERR(cdns_ctrl->dmac)) { + ret = dev_err_probe(cdns_ctrl->dev, PTR_ERR(cdns_ctrl->dmac), + "%d: Failed to get a DMA channel\n", ret); goto disable_irq; } }