From: Clement Leger Date: Fri, 4 Oct 2019 07:37:36 +0000 (+0200) Subject: remoteproc: Fix wrong rvring index computation X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=00a0eec59ddbb1ce966b19097d8a8d2f777e726a;p=openwrt%2Fstaging%2Fblogic.git remoteproc: Fix wrong rvring index computation Index of rvring is computed using pointer arithmetic. However, since rvring->rvdev->vring is the base of the vring array, computation of rvring idx should be reversed. It previously lead to writing at negative indices in the resource table. Signed-off-by: Clement Leger Link: https://lore.kernel.org/r/20191004073736.8327-1-cleger@kalray.eu Signed-off-by: Bjorn Andersson --- diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index c5689be3ebe2..307df98347ba 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -399,7 +399,7 @@ rproc_parse_vring(struct rproc_vdev *rvdev, struct fw_rsc_vdev *rsc, int i) void rproc_free_vring(struct rproc_vring *rvring) { struct rproc *rproc = rvring->rvdev->rproc; - int idx = rvring->rvdev->vring - rvring; + int idx = rvring - rvring->rvdev->vring; struct fw_rsc_vdev *rsc; idr_remove(&rproc->notifyids, rvring->notifyid);