Commit 17878362 authored Jul 03, 2011 by Russell King

ARM: dmabounce: fix map_single() error return value



When map_single() is unable to obtain a safe buffer, we must return
the dma_addr_t error value, which is ~0 rather than 0.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

parent ca56a95e

arch/arm/common/dmabounce.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -255,7 +255,7 @@ static inline dma_addr_t map_single(struct device dev, void ptr, size_t size,
		if (buf == 0) {
		dev_err(dev, "%s: unable to map unsafe buffer %p!\n",
		__func__, ptr);
		return 0;
		return ~0;
		}

		dev_dbg(dev,