From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752036AbaLXV5b (ORCPT ); Wed, 24 Dec 2014 16:57:31 -0500 Received: from devils.ext.ti.com ([198.47.26.153]:42641 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751578AbaLXV5a (ORCPT ); Wed, 24 Dec 2014 16:57:30 -0500 From: Murali Karicheri To: , , , , , , , CC: Murali Karicheri Subject: [PATCH] dma-mapping: fix size when of_dma_get_range() fails Date: Wed, 24 Dec 2014 16:56:50 -0500 Message-ID: <1419458210-4079-1-git-send-email-m-karicheri2@ti.com> X-Mailer: git-send-email 1.7.9.5 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 When call to of_dma_get_range() fails, the code currently set size to dev->coherent_dma_mask instead of dev->coherent_dma_mask + 1. Fix this to make the code consistent with the case when size is obtained from dma-range property. Signed-off-by: Murali Karicheri Reviewed-by: Arnd Bergmann --- drivers/of/platform.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/of/platform.c b/drivers/of/platform.c index a54ec10..af9aef1 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -185,7 +185,7 @@ static void of_dma_configure(struct device *dev) ret = of_dma_get_range(dev->of_node, &dma_addr, &paddr, &size); if (ret < 0) { dma_addr = offset = 0; - size = dev->coherent_dma_mask; + size = dev->coherent_dma_mask + 1; } else { offset = PFN_DOWN(paddr - dma_addr); dev_dbg(dev, "dma_pfn_offset(%#08lx)\n", offset); -- 1.7.9.5