From: Jan Glauber Date: Wed, 8 Dec 2010 02:58:01 +0000 (+0000) Subject: qeth: buffer count imbalance X-Git-Tag: v2.6.38-rc1~476^2~267 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a6a5ff26975c87a97f88c6ea077c325ff20c4cf2;p=platform%2Fkernel%2Flinux-3.10.git qeth: buffer count imbalance The used buffers counter is not incremented in case of an error so the counter can become negative. Increment the used buffers counter before checking for errors. Signed-off-by: Jan Glauber Signed-off-by: Frank Blaschka Signed-off-by: David S. Miller --- diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index e6b2df0..b7d9dc0 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -2840,6 +2840,7 @@ static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index, queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() - queue->card->perf_stats.outbound_do_qdio_start_time; + atomic_add(count, &queue->used_buffers); if (rc) { queue->card->stats.tx_errors += count; /* ignore temporary SIGA errors without busy condition */ @@ -2853,7 +2854,6 @@ static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index, qeth_schedule_recovery(queue->card); return; } - atomic_add(count, &queue->used_buffers); if (queue->card->options.performance_stats) queue->card->perf_stats.bufs_sent += count; }