[v1,1/1] driver core: Add a comment to set_primary_fwnode() on nullifying
Commit Message
Explain what parent && fn == parent->fwnode conditional does.
With this refactor the code a bit.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/base/core.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
@@ -4982,9 +4982,13 @@ void set_primary_fwnode(struct device *dev, struct fwnode_handle *fwnode)
} else {
if (fwnode_is_primary(fn)) {
dev->fwnode = fn->secondary;
+
+ /* Skip nullifying fn->secondary if the primary is shared */
+ if (parent && fn == parent->fwnode)
+ return;
+
/* Set fn->secondary = NULL, so fn remains the primary fwnode */
- if (!(parent && fn == parent->fwnode))
- fn->secondary = NULL;
+ fn->secondary = NULL;
} else {
dev->fwnode = NULL;
}