usb: gadget: composite: switch over to ERR_CAST()

This patch fixes the following Coccinelle warning:

drivers/usb/gadget/composite.c:1142:9-16: WARNING: \
	ERR_CAST can be used with uc

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index d742bed7a5fa..fab906429b80 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -1139,7 +1139,7 @@ struct usb_string *usb_gstrings_attach(struct usb_composite_dev *cdev,
 
         uc = copy_gadget_strings(sp, n_gstrings, n_strings);
         if (IS_ERR(uc))
-                return ERR_PTR(PTR_ERR(uc));
+                return ERR_CAST(uc);
 
         n_gs = get_containers_gs(uc);
         ret = usb_string_ids_tab(cdev, n_gs[0]->strings);