From: Peter Ujfalusi <peter.ujfalusi@ti.com>
Date: Mon, 14 Dec 2015 20:47:38 +0000 (+0200)
Subject: dmaengine: core: Skip mask matching when it is not provided to private_candidate
X-Git-Tag: v4.5-rc1~120^2~12^2~4
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=26b64256e0c4573f3668ac8329a1266ebb9d6120;p=karo-tx-linux.git

dmaengine: core: Skip mask matching when it is not provided to private_candidate

If mask is NULL skip the mask matching against the DMA device capabilities.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---

diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 3ecec1445adf..f2cbff95b56e 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -511,7 +511,7 @@ static struct dma_chan *private_candidate(const dma_cap_mask_t *mask,
 {
 	struct dma_chan *chan;
 
-	if (!__dma_device_satisfies_mask(dev, mask)) {
+	if (mask && !__dma_device_satisfies_mask(dev, mask)) {
 		pr_debug("%s: wrong capabilities\n", __func__);
 		return NULL;
 	}