From: Damian Hobson-Garcia <[email protected]> Until recently uio_get_minor() returned 0 for success and a negative value on failure. This became non-negative for suceess and negative for failure. Restore the original return value spec so that we can successfully initialize UIO devices with a non-zero minor device number.
Upstream commit 5ed0505c713805f89473cdc0bbfb5110dfd840cb Cc: "Hans J. Koch" <[email protected]> Signed-off-by: Damian Hobson-Garcia <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- Please apply to 3.9. drivers/uio/uio.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c index c8b9262..b645c47 100644 --- a/drivers/uio/uio.c +++ b/drivers/uio/uio.c @@ -374,6 +374,7 @@ static int uio_get_minor(struct uio_device *idev) retval = idr_alloc(&uio_idr, idev, 0, UIO_MAX_DEVICES, GFP_KERNEL); if (retval >= 0) { idev->minor = retval; + retval = 0; } else if (retval == -ENOSPC) { dev_err(idev->dev, "too many uio devices\n"); retval = -EINVAL; -- 1.7.9.7 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
