From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: [PATCH 18/18] ALSA: pass struct device to DMA API functions Date: Fri, 1 Feb 2019 09:48:01 +0100 Message-ID: <20190201084801.10983-19-hch@lst.de> References: <20190201084801.10983-1-hch@lst.de> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20190201084801.10983-1-hch@lst.de> Sender: netdev-owner@vger.kernel.org To: John Crispin , Vinod Koul , Dmitry Tarnyagin , Nicolas Ferre , Sudip Mukherjee , Felipe Balbi , linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, netdev@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org Cc: iommu@lists.linux-foundation.org List-Id: iommu@lists.linux-foundation.org The DMA API generally relies on a struct device to work properly, and only barely works without one for legacy reasons. Pass the easily available struct device from the platform_device to remedy this. Also use GFP_KERNEL instead of GFP_USER as the gfp_t for the memory allocation, as we should treat this allocation as a normal kernel one. Signed-off-by: Christoph Hellwig --- sound/mips/sgio2audio.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/sound/mips/sgio2audio.c b/sound/mips/sgio2audio.c index 3ec9391a4736..53a4ee01c522 100644 --- a/sound/mips/sgio2audio.c +++ b/sound/mips/sgio2audio.c @@ -805,7 +805,7 @@ static int snd_sgio2audio_free(struct snd_sgio2audio *chip) free_irq(snd_sgio2_isr_table[i].irq, &chip->channel[snd_sgio2_isr_table[i].idx]); - dma_free_coherent(NULL, MACEISA_RINGBUFFERS_SIZE, + dma_free_coherent(chip->card->dev, MACEISA_RINGBUFFERS_SIZE, chip->ring_base, chip->ring_base_dma); /* release card data */ @@ -843,8 +843,9 @@ static int snd_sgio2audio_create(struct snd_card *card, chip->card = card; - chip->ring_base = dma_alloc_coherent(NULL, MACEISA_RINGBUFFERS_SIZE, - &chip->ring_base_dma, GFP_USER); + chip->ring_base = dma_alloc_coherent(card->dev, + MACEISA_RINGBUFFERS_SIZE, + &chip->ring_base_dma, GFP_KERNEL); if (chip->ring_base == NULL) { printk(KERN_ERR "sgio2audio: could not allocate ring buffers\n"); -- 2.20.1