| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.16 229/357] iio:inkern: fix overwritten -EPROBE_DEFER in of_iio_channel_get_by_name | Date | Fri, 3 Oct 2014 14:30:15 -0700 |
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3.16-stable review patch. If anyone has any objections, please let me know.
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From: Johannes Pointner <johannes.pointner@gmail.com>
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 <johannes.pointner@br-automation.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/iio/inkern.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/iio/inkern.c +++ b/drivers/iio/inkern.c @@ -178,7 +178,7 @@ static struct iio_channel *of_iio_channe 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",
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