iio: handle -EPROBE_DEFER in of_iio_channel_get_by_name
From: Heiko Stuebner <heiko@...> Date: Thu, 28 Aug 2014 23:44:59 +0200
Commit-Message
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 <heiko@...>
Patch-Comment
#### similar patch by Johannes Pointner already fixed this #### drivers/iio/inkern.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
Statistics
- 1 lines added
- 1 lines removed
Changes
----------------------------- drivers/iio/inkern.c -----------------------------
index c749700..f084610 100644
@@ -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) || PTR_ERR(chan) == -EPROBE_DEFER)
break;
else if (name && index >= 0) {
pr_err("ERROR: could not get IIO channel %s:%s(%i)\n",