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-rw-r--r--drivers/spi/spi.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 34aca18a96d8..b5e2f1e1a89e 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -3523,7 +3523,8 @@ static void devm_spi_unregister_controller(void *ctlr)
* Context: can sleep
*
* Register a SPI device as with spi_register_controller() which will
- * automatically be unregistered and freed.
+ * automatically be unregistered (and freed unless it has been allocated using
+ * devm_spi_alloc_host/target()).
*
* Return: zero on success, else a negative error code.
*/
@@ -3557,7 +3558,8 @@ static int __unregister(struct device *dev, void *null)
*
* This must be called from context that can sleep.
*
- * Note that this function also drops a reference to the controller.
+ * Note that this function also drops a reference to the controller unless it
+ * has been allocated using devm_spi_alloc_host/target().
*/
void spi_unregister_controller(struct spi_controller *ctlr)
{