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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-07-03 23:24:21 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-07-03 23:24:21 +0100 |
| commit | 178783622ce0fd629fad21b33b8f8f56b64c5e45 (patch) | |
| tree | de3c5133acd86cca859bd24b49d79e2040eeb714 /arch | |
| parent | ca56a95eedcc95f8fea7b49c87565cd961d74fe2 (diff) | |
| download | linux-stable-178783622ce0fd629fad21b33b8f8f56b64c5e45.tar.gz linux-stable-178783622ce0fd629fad21b33b8f8f56b64c5e45.tar.bz2 linux-stable-178783622ce0fd629fad21b33b8f8f56b64c5e45.zip | |
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/common/dmabounce.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c index e5681636626f..841df7d21c2f 100644 --- a/arch/arm/common/dmabounce.c +++ b/arch/arm/common/dmabounce.c @@ -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, |