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-rw-r--r--kernel/cpu.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 217fd2e7f435..5339aca811d2 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -1586,7 +1586,11 @@ EXPORT_SYMBOL_GPL(__cpuhp_state_add_instance);
* @startup: startup callback function
* @teardown: teardown callback function
*
- * Returns 0 if successful, otherwise a proper error code
+ * Returns:
+ * On success:
+ * Positive state number if @state is CPUHP_AP_ONLINE_DYN
+ * 0 for all other states
+ * On failure: proper (negative) error code
*/
int __cpuhp_setup_state(enum cpuhp_state state,
const char *name, bool invoke,