By definition, wait_for_completion_timeout() returns an unsigned value and therefore, it is not necessary to check if the return value is less than zero as this is not possible. This is based on a patch from Jon Hunter <jon-hunter@xxxxxx> Changes from his patch - Declare a long as the wait_for_completion_timeout returns long. Original patch is http://git.omapzoom.org/?p=kernel/omap.git;a=commitdiff;h=ea02cece7b0000bc736e60c4188a11aaa74bc6e6 Signed-off-by: Jon Hunter <jon-hunter@xxxxxx> Signed-off-by: Shubhrajyoti D <shubhrajyoti@xxxxxx> --- - Added Jon's signoff drivers/i2c/busses/i2c-omap.c | 10 ++++------ 1 files changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index 1777d79..fec8d5c 100644 --- a/drivers/i2c/busses/i2c-omap.c +++ b/drivers/i2c/busses/i2c-omap.c @@ -473,7 +473,7 @@ static int omap_i2c_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, int stop) { struct omap_i2c_dev *dev = i2c_get_adapdata(adap); - int r; + unsigned long timeout; u16 w; dev_dbg(dev->dev, "addr: 0x%04x, len: %d, flags: 0x%x, stop: %d\n", @@ -541,12 +541,10 @@ static int omap_i2c_xfer_msg(struct i2c_adapter *adap, * REVISIT: We should abort the transfer on signals, but the bus goes * into arbitration and we're currently unable to recover from it. */ - r = wait_for_completion_timeout(&dev->cmd_complete, - OMAP_I2C_TIMEOUT); + timeout = wait_for_completion_timeout(&dev->cmd_complete, + OMAP_I2C_TIMEOUT); dev->buf_len = 0; - if (r < 0) - return r; - if (r == 0) { + if (timeout == 0) { dev_err(dev->dev, "controller timed out\n"); omap_i2c_init(dev); return -ETIMEDOUT; -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
