tree 42f31a81b456cc4ef4958e3f108c3e9407c0e06e
parent 7ee3b7ebcb74714df6d94c8f500f307e1ee5dda5
author Matt Fornero <matt.fornero@mathworks.com> 1504622050 +0200
committer Jonathan Cameron <Jonathan.Cameron@huawei.com> 1506268712 +0100

iio: core: Return error for failed read_reg

If an IIO device returns an error code for a read access via debugfs, it
is currently ignored by the IIO core (other than emitting an error
message). Instead, return this error code to user space, so upper layers
can detect it correctly.

Signed-off-by: Matt Fornero <matt.fornero@mathworks.com>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>