[PATCH 4.4 038/118] iio: ensure ret is initialized to zero before entering do loop

4.4-stable review patch. If anyone has any objections, please let me know. -- From: Colin Ian King commit 5dba4b14bafe801083d01e1f400816df7e5a8f2e upstream. A recent fix to iio_buffer_read_first_n_outer removed ret from being set by a return from

[PATCH 4.4 038/118] iio: ensure ret is initialized to zero before entering do loop

4.4-stable review patch. If anyone has any objections, please let me know. -- From: Colin Ian King commit 5dba4b14bafe801083d01e1f400816df7e5a8f2e upstream. A recent fix to iio_buffer_read_first_n_outer removed ret from being set by a return from wait_event_interruptible and