diff mbox series

[U-Boot,011/126] dm: core: Correct the return value for uclass_find_first_device()

Message ID 20190925145750.200592-12-sjg@chromium.org
State Accepted
Commit 4805a7af8ebd4c604e1e32355927ec5035685121
Delegated to: Bin Meng
Headers show
Series x86: Add initial support for apollolake | expand

Commit Message

Simon Glass Sept. 25, 2019, 2:55 p.m. UTC
This function returns -ENODEV when there is no device. This is
inconsistent with other functions, such as uclass_find_next_device(),
which returns 0.

Update it and tidy up the incorrect '-1' values in the comments.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

 drivers/core/uclass.c        | 2 +-
 include/dm/uclass-internal.h | 4 ++--
 test/dm/core.c               | 3 +--
 3 files changed, 4 insertions(+), 5 deletions(-)

Comments

Bin Meng Oct. 4, 2019, 9:44 a.m. UTC | #1
On Wed, Sep 25, 2019 at 10:58 PM Simon Glass <sjg@chromium.org> wrote:
>
> This function returns -ENODEV when there is no device. This is
> inconsistent with other functions, such as uclass_find_next_device(),
> which returns 0.
>
> Update it and tidy up the incorrect '-1' values in the comments.
>
> Signed-off-by: Simon Glass <sjg@chromium.org>
> ---
>
>  drivers/core/uclass.c        | 2 +-
>  include/dm/uclass-internal.h | 4 ++--
>  test/dm/core.c               | 3 +--
>  3 files changed, 4 insertions(+), 5 deletions(-)
>

Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Bin Meng Oct. 6, 2019, 9:27 a.m. UTC | #2
On Fri, Oct 4, 2019 at 5:44 PM Bin Meng <bmeng.cn@gmail.com> wrote:
>
> On Wed, Sep 25, 2019 at 10:58 PM Simon Glass <sjg@chromium.org> wrote:
> >
> > This function returns -ENODEV when there is no device. This is
> > inconsistent with other functions, such as uclass_find_next_device(),
> > which returns 0.
> >
> > Update it and tidy up the incorrect '-1' values in the comments.
> >
> > Signed-off-by: Simon Glass <sjg@chromium.org>
> > ---
> >
> >  drivers/core/uclass.c        | 2 +-
> >  include/dm/uclass-internal.h | 4 ++--
> >  test/dm/core.c               | 3 +--
> >  3 files changed, 4 insertions(+), 5 deletions(-)
> >
>
> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
> Tested-by: Bin Meng <bmeng.cn@gmail.com>

applied to u-boot-x86/next, thanks!
diff mbox series

Patch

diff --git a/drivers/core/uclass.c b/drivers/core/uclass.c
index af575bbeb72..f217876cd2c 100644
--- a/drivers/core/uclass.c
+++ b/drivers/core/uclass.c
@@ -225,7 +225,7 @@  int uclass_find_first_device(enum uclass_id id, struct udevice **devp)
 	if (ret)
 		return ret;
 	if (list_empty(&uc->dev_head))
-		return -ENODEV;
+		return 0;
 
 	*devp = list_first_entry(&uc->dev_head, struct udevice, uclass_node);
 
diff --git a/include/dm/uclass-internal.h b/include/dm/uclass-internal.h
index 6977995246d..6e3f15c2b08 100644
--- a/include/dm/uclass-internal.h
+++ b/include/dm/uclass-internal.h
@@ -69,7 +69,7 @@  int uclass_find_device(enum uclass_id id, int index, struct udevice **devp);
  * The device is not prepared for use - this is an internal function.
  * The function uclass_get_device_tail() can be used to probe the device.
  *
- * @return 0 if OK (found or not found), -1 on error
+ * @return 0 if OK (found or not found), -ve on error
  */
 int uclass_find_first_device(enum uclass_id id, struct udevice **devp);
 
@@ -81,7 +81,7 @@  int uclass_find_first_device(enum uclass_id id, struct udevice **devp);
  * The device is not prepared for use - this is an internal function.
  * The function uclass_get_device_tail() can be used to probe the device.
  *
- * @return 0 if OK (found or not found), -1 on error
+ * @return 0 if OK (found or not found), -ve on error
  */
 int uclass_find_next_device(struct udevice **devp);
 
diff --git a/test/dm/core.c b/test/dm/core.c
index edd55b05d6e..f74c4308439 100644
--- a/test/dm/core.c
+++ b/test/dm/core.c
@@ -749,8 +749,7 @@  static int dm_test_uclass_devices_find(struct unit_test_state *uts)
 		ut_assert(dev);
 	}
 
-	ret = uclass_find_first_device(UCLASS_TEST_DUMMY, &dev);
-	ut_assert(ret == -ENODEV);
+	ut_assertok(uclass_find_first_device(UCLASS_TEST_DUMMY, &dev));
 	ut_assert(!dev);
 
 	return 0;