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Diffstat (limited to 'net/bluetooth/hci_event.c')
-rw-r--r--net/bluetooth/hci_event.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index b8213bfa0a67..262ff30261d6 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -4395,7 +4395,17 @@ static void hci_num_comp_pkts_evt(struct hci_dev *hdev, void *data,
if (!conn)
continue;
- conn->sent -= count;
+ /* Check if there is really enough packets outstanding before
+ * attempting to decrease the sent counter otherwise it could
+ * underflow..
+ */
+ if (conn->sent >= count) {
+ conn->sent -= count;
+ } else {
+ bt_dev_warn(hdev, "hcon %p sent %u < count %u",
+ conn, conn->sent, count);
+ conn->sent = 0;
+ }
switch (conn->type) {
case ACL_LINK: