From: Stefan Wahren Date: Thu, 25 May 2017 22:26:24 +0000 (+0200) Subject: staging: vchiq_core: Don't BUG if process is unexpected X-Git-Tag: v4.13-rc1~184^2~222 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=6f2370d260c4dc6eba1de2b4f55786f99abf937c;p=karo-tx-linux.git staging: vchiq_core: Don't BUG if process is unexpected Bail out properly if the process index doesn't match the remote insert. We also drop the BUG in case the process index is at local insert, so we can trigger the WARN_ON again some steps later. Signed-off-by: Stefan Wahren Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c index 9cdc98570a22..b0119b80b776 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c @@ -1963,9 +1963,14 @@ parse_rx_slots(VCHIQ_STATE_T *state) mutex_unlock(&service->bulk_mutex); break; } - - BUG_ON(queue->process == queue->local_insert); - BUG_ON(queue->process != queue->remote_insert); + if (queue->process != queue->remote_insert) { + pr_err("%s: p %x != ri %x\n", + __func__, + queue->process, + queue->remote_insert); + mutex_unlock(&service->bulk_mutex); + goto bail_not_ready; + } bulk = &queue->bulks[ BULK_INDEX(queue->remote_insert)];