Commit 1080411c authored Dec 14, 2013 by Linus Walleij Committed by Vinod Koul Dec 18, 2013

dma: pl08x: allow zero slave channels



It might happen that a platform wants to use its DMA engine for
memcpy only, and then we have zero slave channels to initialize,
so allow the slave initialization to return zero.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

parent 0e772c67

drivers/dma/amba-pl08x.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2167,7 +2167,7 @@ static int pl08x_probe(struct amba_device adev, const struct amba_id id)
		/* Register slave channels */
		ret = pl08x_dma_init_virtual_channels(pl08x, &pl08x->slave,
		pl08x->pd->num_slave_channels, true);
		if (ret <= 0) {
		if (ret < 0) {
		dev_warn(&pl08x->adev->dev,
		"%s failed to enumerate slave channels - %d\n",
		__func__, ret);