[PATCH 07/28] staging: most: fix tracking of MBO offset

Christian Gromm christian.gromm at microchip.com
Wed Nov 18 12:43:31 UTC 2015


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 at microchip.com>
---
 drivers/staging/most/aim-cdev/cdev.c |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/most/aim-cdev/cdev.c b/drivers/staging/most/aim-cdev/cdev.c
index 86194ce..0141293 100644
--- 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;
-- 
1.7.9.5



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