These are not as clear as they could be. Tidy them up a bit. Also fix a tiny code-style nit.
Signed-off-by: Simon Glass sjg@chromium.org ---
drivers/core/uclass.c | 3 +-- include/dm/uclass.h | 13 +++++++++++-- 2 files changed, 12 insertions(+), 4 deletions(-)
diff --git a/drivers/core/uclass.c b/drivers/core/uclass.c index 04fb45b01a..42613031ff 100644 --- a/drivers/core/uclass.c +++ b/drivers/core/uclass.c @@ -342,8 +342,7 @@ int uclass_get_device_by_driver(enum uclass_id id, return -ENODEV; }
-int uclass_get_device_tail(struct udevice *dev, int ret, - struct udevice **devp) +int uclass_get_device_tail(struct udevice *dev, int ret, struct udevice **devp) { if (ret) return ret; diff --git a/include/dm/uclass.h b/include/dm/uclass.h index b583aa869b..63da868ae5 100644 --- a/include/dm/uclass.h +++ b/include/dm/uclass.h @@ -224,8 +224,13 @@ int uclass_get_device_by_driver(enum uclass_id id, const struct driver *drv, * * The device returned is probed if necessary, and ready for use * + * This function is useful to start iterating through a list of devices which + * are functioning correctly and can be probed. + * * @id: Uclass ID to look up - * @devp: Returns pointer to the first device in that uclass, or NULL if none + * @devp: Returns pointer to the first device in that uclass if no error + * occurred, or NULL if there is no first device, or an error occurred with + * that device. * @return 0 if OK (found or not found), other -ve on error */ int uclass_first_device(enum uclass_id id, struct udevice **devp); @@ -246,8 +251,12 @@ int uclass_first_device_err(enum uclass_id id, struct udevice **devp); * * The device returned is probed if necessary, and ready for use * + * This function is useful to start iterating through a list of devices which + * are functioning correctly and can be probed. + * * @devp: On entry, pointer to device to lookup. On exit, returns pointer - * to the next device in the same uclass, or NULL if none + * to the next device in the uclass if no error occurred, or NULL if there is + * no next device, or an error occurred with that next device. * @return 0 if OK (found or not found), other -ve on error */ int uclass_next_device(struct udevice **devp);