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-rw-r--r--drivers/base/core.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 9649d1c422a..8c2cc2648f5 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -1327,6 +1327,11 @@ EXPORT_SYMBOL_GPL(device_destroy);
* device_rename - renames a device
* @dev: the pointer to the struct device to be renamed
* @new_name: the new name of the device
+ *
+ * It is the responsibility of the caller to provide mutual
+ * exclusion between two different calls of device_rename
+ * on the same device to ensure that new_name is valid and
+ * won't conflict with other devices.
*/
int device_rename(struct device *dev, char *new_name)
{