[PATCH 1/1] block: fix blk_get_devnum_by_typename()

[Heinrich Schuchardt]

Both the 'host' and the 'efiloader' block devices use the same parent
uclass root. Thus the parent uclass is not an indicator the interface type.

Currently the following fails:

    setenv efi_selftest block device
    bootefi selftest
    part list efiloader 0

Struct blk_desc contains the interface type. So we can check it directly
without caring about the parent uclass.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt at canonical.com>
---
 drivers/block/blk-uclass.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/block/blk-uclass.c b/drivers/block/blk-uclass.c
index 21c5209bb6..779cda7834 100644
--- a/drivers/block/blk-uclass.c
+++ b/drivers/block/blk-uclass.c
@@ -122,15 +122,11 @@ struct blk_desc *blk_get_devnum_by_typename(const char *if_typename, int devnum)
 
 		debug("%s: if_type=%d, devnum=%d: %s, %d, %d\n", __func__,
 		      if_type, devnum, dev->name, desc->if_type, desc->devnum);
-		if (desc->devnum != devnum)
-			continue;
 
-		/* Find out the parent device uclass */
-		if (device_get_uclass_id(dev->parent) != uclass_id) {
-			debug("%s: parent uclass %d, this dev %d\n", __func__,
-			      device_get_uclass_id(dev->parent), uclass_id);
+		if (desc->if_type != if_type)
+			continue;
+		if (desc->devnum != devnum)
 			continue;
-		}
 
 		if (device_probe(dev))
 			return NULL;
-- 
2.36.1