From 7eecd28eb6a82a5e1e0f0cdec6aa3ab421a0a1e4 Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Thu, 28 Aug 2014 23:44:59 +0200 Subject: [PATCH] iio: handle -EPROBE_DEFER in of_iio_channel_get_by_name Till now of_iio_channel_get_by_name always tried to find the channel without evaluating the return code from of_iio_channel_get. This might include -EPROBE_DEFER in which case the channel is present but its driver simply not probed yet. Therefore simply return on -EPROBE_DEFER so that the driver requesting the channel can also defer. Signed-off-by: Heiko Stuebner --- #### similar patch by Johannes Pointner already fixed this #### drivers/iio/inkern.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c index c749700..f084610 100644 --- a/drivers/iio/inkern.c +++ b/drivers/iio/inkern.c @@ -178,7 +178,7 @@ static struct iio_channel *of_iio_channel_get_by_name(struct device_node *np, index = of_property_match_string(np, "io-channel-names", name); chan = of_iio_channel_get(np, index); - if (!IS_ERR(chan)) + if (!IS_ERR(chan) || PTR_ERR(chan) == -EPROBE_DEFER) break; else if (name && index >= 0) { pr_err("ERROR: could not get IIO channel %s:%s(%i)\n", -- 2.0.1