From: Johannes Pointner <[email protected]>

This patch has been added to the 3.12 stable tree. If you have any
objections, please let us know.

===============

commit 872687f626e033b4ddfaec1e410057cfc6636d77 upstream.

Fixes: a2c12493ed7e ('iio: of_iio_channel_get_by_name() returns non-null 
pointers for error legs')

which improperly assumes that of_iio_channel_get_by_name must always
return NULL and thus now hides -EPROBE_DEFER.

Signed-off-by: Johannes Pointner <[email protected]>
Reviewed-by: Guenter Roeck <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>
Signed-off-by: Jiri Slaby <[email protected]>
---
 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 1e8e94d4db7d..4fc88e617acf 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",
-- 
2.1.1

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