diff options
| author | Clement Leger <cleger@kalray.eu> | 2019-10-04 09:37:36 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-05-02 08:48:41 +0200 |
| commit | 4d23f544a32884e794946861f584027af916fd87 (patch) | |
| tree | 4aa7bc3c6f13f41932049caa2e65b5832915c2b2 /drivers/remoteproc | |
| parent | aa73bcc376865c23e61dcebd467697b527901be8 (diff) | |
remoteproc: Fix wrong rvring index computation
commit 00a0eec59ddbb1ce966b19097d8a8d2f777e726a upstream.
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 <cleger@kalray.eu>
Link: https://lore.kernel.org/r/20191004073736.8327-1-cleger@kalray.eu
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Doug Anderson <dianders@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/remoteproc')
| -rw-r--r-- | drivers/remoteproc/remoteproc_core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index b542debbc6f0..010f541a5002 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -400,7 +400,7 @@ 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); |