[U-Boot] [PATCH v4 05/33] dm: do not return pointer if NULL is given to devp of device_bind()

[Simon Glass]

From: Masahiro Yamada <yamada.masahiro at socionext.com>

This is useful when we want to bind a device, but do not need the
device pointer.

Signed-off-by: Masahiro Yamada <yamada.masahiro at socionext.com>
Signed-off-by: Simon Glass <sjg at chromium.org>
---

Changes in v4: None
Changes in v3: None
Changes in v2: None

 drivers/core/device.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/core/device.c b/drivers/core/device.c
index f40c977..4f060ee 100644
--- a/drivers/core/device.c
+++ b/drivers/core/device.c
@@ -33,7 +33,8 @@ int device_bind(struct udevice *parent, const struct driver *drv,
 	struct uclass *uc;
 	int size, ret = 0;
 
-	*devp = NULL;
+	if (devp)
+		*devp = NULL;
 	if (!name)
 		return -EINVAL;
 
@@ -134,7 +135,8 @@ int device_bind(struct udevice *parent, const struct driver *drv,
 
 	if (parent)
 		dm_dbg("Bound device %s to %s\n", dev->name, parent->name);
-	*devp = dev;
+	if (devp)
+		*devp = dev;
 
 	dev->flags |= DM_FLAG_BOUND;
 
-- 
2.5.0.457.gab17608