[PATCH 3.16 319/366] i2c: pmcmsp: fix error return from master_xfer

[Ben Hutchings]

3.16.60-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Peter Rosin <p...@axentia.se>

commit 12d9bbc5a7f347eaa65ff2a9d34995cadc05eb1b upstream.

Returning -1 (-EPERM) is not appropriate here, go with -EIO.

Signed-off-by: Peter Rosin <p...@axentia.se>
Signed-off-by: Wolfram Sang <w...@the-dreams.de>
Fixes: 1b144df1d7d6 ("i2c: New PMC MSP71xx TWI bus driver")
Signed-off-by: Ben Hutchings <b...@decadent.org.uk>
---
 drivers/i2c/busses/i2c-pmcmsp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/i2c/busses/i2c-pmcmsp.c
+++ b/drivers/i2c/busses/i2c-pmcmsp.c
@@ -596,7 +596,7 @@ static int pmcmsptwi_master_xfer(struct
                 * TODO: We could potentially loop and retry in the case
                 * of MSP_TWI_XFER_TIMEOUT.
                 */
-               return -1;
+               return -EIO;
        }
 
        return num;