On Thu 26 Jul 18:15 PDT 2018, Suman Anna wrote:
> Unwind the modified table_ptr and restore it to the local copy
> upon any subsequent failures in the rproc_start() function. This
> keeps the function to remain balanced on failures without the need
> to balance any modified variables elsewhere.
>
Good catch.
> While at this, do some minor cleanup of the extra lines between
> the failure labels as well.
>
> Signed-off-by: Suman Anna <s-anna@xxxxxx>
> ---
> drivers/remoteproc/remoteproc_core.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
> index eadff6ce2f7f..afef2d491c5b 100644
> --- a/drivers/remoteproc/remoteproc_core.c
> +++ b/drivers/remoteproc/remoteproc_core.c
> @@ -953,7 +953,7 @@ static int rproc_start(struct rproc *rproc, const struct firmware *fw)
> if (ret) {
> dev_err(dev, "failed to prepare subdevices for %s: %d\n",
> rproc->name, ret);
> - return ret;
> + goto reset_table_ptr;
> }
>
> /* power up the remote processor */
> @@ -979,10 +979,11 @@ static int rproc_start(struct rproc *rproc, const struct firmware *fw)
>
> stop_rproc:
> rproc->ops->stop(rproc);
> -
> unprepare_subdevices:
> rproc_unprepare_subdevices(rproc);
> -
> +reset_table_ptr:
> + if (loaded_table)
Regardless of us having a loaded_table it should have the same value as
cached_table when we return - which might be NULL if we don't have a
resource table.
So I applied this without the conditional, please object if I missed
something.
Regards,
Bjorn
> + rproc->table_ptr = rproc->cached_table;
> return ret;
> }
>
> --
> 2.18.0
>
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