staging: most: fix tracking of MBO offset

This patch increments mbo_offs by the number of bytes that have
been copied and resets it in case a complete mbo has been transferred
to user buffer.

Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/most/aim-cdev/cdev.c b/drivers/staging/most/aim-cdev/cdev.c
index 86194ce..0141293 100644 (file)
--- a/drivers/staging/most/aim-cdev/cdev.c
+++ b/drivers/staging/most/aim-cdev/cdev.c
@@ -257,9 +257,8 @@ start_copy:
 
        copied = to_copy - not_copied;
 
-       if (count < mbo->processed_length) {
-               channel->mbo_offs = copied;
-       } else {
+       channel->mbo_offs += copied;
+       if (channel->mbo_offs >= mbo->processed_length) {
                most_put_mbo(mbo);
                channel->mbo_offs = 0;
                channel->stacked_mbo = NULL;