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driver core: Do not overwrite secondary fwnode with NULL if it is set
[cascardo/linux.git]
/
drivers
/
base
/
core.c
diff --git
a/drivers/base/core.c
b/drivers/base/core.c
index
b7d56c5
..
0a8bdad
100644
(file)
--- a/
drivers/base/core.c
+++ b/
drivers/base/core.c
@@
-2261,7
+2261,10
@@
void set_primary_fwnode(struct device *dev, struct fwnode_handle *fwnode)
if (fwnode_is_primary(fn))
fn = fn->secondary;
- fwnode->secondary = fn;
+ if (fn) {
+ WARN_ON(fwnode->secondary);
+ fwnode->secondary = fn;
+ }
dev->fwnode = fwnode;
} else {
dev->fwnode = fwnode_is_primary(dev->fwnode) ?