[PATCH 3/8] remoteproc: Clone rproc_ops in rproc_alloc()

From: Bjorn Andersson
Date: Wed Dec 13 2017 - 17:42:43 EST


In order to allow rproc_alloc() to, in a future patch, update entries in
the "ops" struct we need to make a local copy of it.

Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
---
drivers/remoteproc/remoteproc_core.c | 9 ++++++++-
include/linux/remoteproc.h | 2 +-
2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index 761268096fe0..9bc9ee8f4513 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -1342,6 +1342,7 @@ static void rproc_type_release(struct device *dev)
ida_simple_remove(&rproc_dev_index, rproc->index);

kfree(rproc->firmware);
+ kfree(rproc->ops);
kfree(rproc);
}

@@ -1406,9 +1407,15 @@ struct rproc *rproc_alloc(struct device *dev, const char *name,
return NULL;
}

+ rproc->ops = kmemdup(ops, sizeof(*ops), GFP_KERNEL);
+ if (!rproc->ops) {
+ kfree(p);
+ kfree(rproc);
+ return NULL;
+ }
+
rproc->firmware = p;
rproc->name = name;
- rproc->ops = ops;
rproc->priv = &rproc[1];
rproc->auto_boot = true;

diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
index b72be13d773d..6cbc0379a926 100644
--- a/include/linux/remoteproc.h
+++ b/include/linux/remoteproc.h
@@ -419,7 +419,7 @@ struct rproc {
const char *name;
char *firmware;
void *priv;
- const struct rproc_ops *ops;
+ struct rproc_ops *ops;
struct device dev;
const struct rproc_fw_ops *fw_ops;
atomic_t power;
--
2.15.0