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staging: most: fix tracking of MBO offset

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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>
This commit is contained in:
Christian Gromm 2015-12-22 10:52:48 +01:00 committed by Greg Kroah-Hartman
parent 8a742f785b
commit 9e2f2c4fb9
1 changed files with 2 additions and 3 deletions
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5
drivers/staging/most/aim-cdev/cdev.c
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@ -257,9 +257,8 @@ aim_read(struct file *filp, char __user *buf, size_t count, loff_t *offset)
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;