add blk child devices to ignore list while displaying usb tree graph, otherwise usb tree and info commands may cause crash treating blk as usb device.
Signed-off-by: Suneel Garapati <suneelgli...@gmail.com> --- Changes v4: - do not set preamble if child is block device for mass storage Changes v3: - remove 'check on parent uclass' in description Changes v2: - remove check on parent uclass Changes v1: - add separate check on blk uclass - modify description - add separate check on parent uclass as usb cmd/usb.c | 21 ++++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-) diff --git a/cmd/usb.c b/cmd/usb.c index d95bcf5..d64561e 100644 --- a/cmd/usb.c +++ b/cmd/usb.c @@ -349,6 +349,16 @@ static void usb_show_tree_graph(struct usb_device *dev, char *pre) printf(" %s", pre); #ifdef CONFIG_DM_USB has_child = device_has_active_children(dev->dev); + if (device_get_uclass_id(dev->dev) == UCLASS_MASS_STORAGE) { + struct udevice *child; + + for (device_find_first_child(dev->dev, &child); + child; + device_find_next_child(&child)) { + if (device_get_uclass_id(child) == UCLASS_BLK) + has_child = 0; + } + } #else /* check if the device has connected children */ int i; @@ -414,8 +424,12 @@ static void usb_show_tree_graph(struct usb_device *dev, char *pre) udev = dev_get_parent_priv(child); - /* Ignore emulators, we only want real devices */ - if (device_get_uclass_id(child) != UCLASS_USB_EMUL) { + /* + * Ignore emulators and block child devices, we only want + * real devices + */ + if ((device_get_uclass_id(child) != UCLASS_USB_EMUL) && + (device_get_uclass_id(child) != UCLASS_BLK)) { usb_show_tree_graph(udev, pre); pre[index] = 0; } @@ -605,7 +619,8 @@ static void usb_show_info(struct usb_device *udev) for (device_find_first_child(udev->dev, &child); child; device_find_next_child(&child)) { - if (device_active(child)) { + if (device_active(child) && + (device_get_uclass_id(child) != UCLASS_BLK)) { udev = dev_get_parent_priv(child); usb_show_info(udev); } -- 2.7.4 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot