Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754173AbbK3Nq0 (ORCPT ); Mon, 30 Nov 2015 08:46:26 -0500 Received: from comal.ext.ti.com ([198.47.26.152]:46560 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754061AbbK3NqW (ORCPT ); Mon, 30 Nov 2015 08:46:22 -0500 From: Peter Ujfalusi To: , , CC: , , , , , , Subject: [RFC v02 01/15] dmaengine: core: Allow NULL mask pointer in __dma_device_satisfies_mask() Date: Mon, 30 Nov 2015 15:45:31 +0200 Message-ID: <1448891145-10766-2-git-send-email-peter.ujfalusi@ti.com> X-Mailer: git-send-email 2.6.3 In-Reply-To: <1448891145-10766-1-git-send-email-peter.ujfalusi@ti.com> References: <1448891145-10766-1-git-send-email-peter.ujfalusi@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 875 Lines: 29 Treat as true condition the case when the mask is NULL. Signed-off-by: Peter Ujfalusi --- drivers/dma/dmaengine.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index daf54a39bcc7..52c3eee48e2e 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -184,6 +184,9 @@ __dma_device_satisfies_mask(struct dma_device *device, { dma_cap_mask_t has; + if (!want) + return true; + bitmap_and(has.bits, want->bits, device->cap_mask.bits, DMA_TX_TYPE_END); return bitmap_equal(want->bits, has.bits, DMA_TX_TYPE_END); -- 2.6.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/