The software_node_get_next_child() function currently does not hold
references to the child software_node that it finds or put the ref that
is held against the old child - fix that.
Signed-off-by: Daniel Scally <[email protected]>
---
Changes since RFC v3:
Put reference to previous child.
drivers/base/swnode.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c
index 010828fc785b..615a0c93e116 100644
--- a/drivers/base/swnode.c
+++ b/drivers/base/swnode.c
@@ -443,14 +443,18 @@ software_node_get_next_child(const struct fwnode_handle *fwnode,
struct swnode *c = to_swnode(child);
if (!p || list_empty(&p->children) ||
- (c && list_is_last(&c->entry, &p->children)))
+ (c && list_is_last(&c->entry, &p->children))) {
+ fwnode_handle_put(child);
return NULL;
+ }
if (c)
c = list_next_entry(c, entry);
else
c = list_first_entry(&p->children, struct swnode, entry);
- return &c->fwnode;
+
+ fwnode_handle_put(child);
+ return fwnode_handle_get(&c->fwnode);
}
static struct fwnode_handle *
--
2.25.1
Hi Daniel,
Thank you for the patch.
On Mon, Nov 30, 2020 at 01:31:14PM +0000, Daniel Scally wrote:
> The software_node_get_next_child() function currently does not hold
> references to the child software_node that it finds or put the ref that
> is held against the old child - fix that.
>
> Signed-off-by: Daniel Scally <[email protected]>
Reviewed-by: Laurent Pinchart <[email protected]>
> ---
> Changes since RFC v3:
>
> Put reference to previous child.
>
> drivers/base/swnode.c | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c
> index 010828fc785b..615a0c93e116 100644
> --- a/drivers/base/swnode.c
> +++ b/drivers/base/swnode.c
> @@ -443,14 +443,18 @@ software_node_get_next_child(const struct fwnode_handle *fwnode,
> struct swnode *c = to_swnode(child);
>
> if (!p || list_empty(&p->children) ||
> - (c && list_is_last(&c->entry, &p->children)))
> + (c && list_is_last(&c->entry, &p->children))) {
> + fwnode_handle_put(child);
> return NULL;
> + }
>
> if (c)
> c = list_next_entry(c, entry);
> else
> c = list_first_entry(&p->children, struct swnode, entry);
> - return &c->fwnode;
> +
> + fwnode_handle_put(child);
> + return fwnode_handle_get(&c->fwnode);
> }
>
> static struct fwnode_handle *
--
Regards,
Laurent Pinchart
On Mon, Nov 30, 2020 at 01:31:14PM +0000, Daniel Scally wrote:
> The software_node_get_next_child() function currently does not hold
> references to the child software_node that it finds or put the ref that
> is held against the old child - fix that.
Fixes tag and make it first in the series?
In any case,
Reviewed-by: Andy Shevchenko <[email protected]>
> Signed-off-by: Daniel Scally <[email protected]>
> ---
> Changes since RFC v3:
>
> Put reference to previous child.
>
> drivers/base/swnode.c | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c
> index 010828fc785b..615a0c93e116 100644
> --- a/drivers/base/swnode.c
> +++ b/drivers/base/swnode.c
> @@ -443,14 +443,18 @@ software_node_get_next_child(const struct fwnode_handle *fwnode,
> struct swnode *c = to_swnode(child);
>
> if (!p || list_empty(&p->children) ||
> - (c && list_is_last(&c->entry, &p->children)))
> + (c && list_is_last(&c->entry, &p->children))) {
> + fwnode_handle_put(child);
> return NULL;
> + }
>
> if (c)
> c = list_next_entry(c, entry);
> else
> c = list_first_entry(&p->children, struct swnode, entry);
> - return &c->fwnode;
> +
> + fwnode_handle_put(child);
> + return fwnode_handle_get(&c->fwnode);
> }
>
> static struct fwnode_handle *
> --
> 2.25.1
>
--
With Best Regards,
Andy Shevchenko