tree d05f280eb69d50e7f19412ad28da77fefc53ce49
parent b0a707ebe473d01c18991f02286c56b717ea123d
author Suneel Garapati <suneelglinux@gmail.com> 1508804920 -0700
committer Marek Vasut <marek.vasut+renesas@gmail.com> 1511659356 +0100

cmd: usb: ignore blk, emulation devices in usb tree/info display

Usb tree/info commands iterate over all usb uclass devices recursively.
Blk uclass devices based on struct blk_desc are created for mass storage
device, treating them as usb uclass devices based on struct usb_device
and referencing usb config interface descriptors cause crash.
To fix, ignore blk and usb_emul uclass devices in usb_show_info
and usb_tree_graph. Also avoid addition of preamble for blk uclass
child devices, otherwise tree dump gets messed up.

Signed-off-by: Suneel Garapati <suneelglinux@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>