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 17:25:47 +0200 |
| commit | 90fb92bb55cdbf959c489ed64afd20ea5de1081c (patch) | |
| tree | 758a072f4ac74400b9879761d4d9effd8c65e947 /drivers/remoteproc | |
| parent | 765675379b6253b6901563e649a2f87d28ada3ff (diff) | |
| download | linux-stable-90fb92bb55cdbf959c489ed64afd20ea5de1081c.tar.gz linux-stable-90fb92bb55cdbf959c489ed64afd20ea5de1081c.tar.bz2 linux-stable-90fb92bb55cdbf959c489ed64afd20ea5de1081c.zip | |
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 abbef17c97ee..d5ff272fde34 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -289,7 +289,7 @@ void rproc_free_vring(struct rproc_vring *rvring) { int size = PAGE_ALIGN(vring_size(rvring->len, rvring->align)); struct rproc *rproc = rvring->rvdev->rproc; - int idx = rvring->rvdev->vring - rvring; + int idx = rvring - rvring->rvdev->vring; struct fw_rsc_vdev *rsc; dma_free_coherent(rproc->dev.parent, size, rvring->va, rvring->dma); |