usb: gadget: f_fs: signedness bug in __ffs_func_bind_do_descs()
usb: gadget: f_fs: signedness bug in __ffs_func_bind_do_descs()

We need "idx" to be signed for the error handling to work.

Fixes: 6d5c1c77bbf9 ('usb: gadget: f_fs: fix the redundant ep files problem')
Acked-by: Michal Nazarewicz <605208d9b4c769ca62e9f9f8b592c9cd465fe6d7@mina86.com>
Signed-off-by: Dan Carpenter <ff341aa343d564f9e53e9dcb6996be8c04859a66@oracle.com>
Signed-off-by: Felipe Balbi <94dddeeef08b001e003cce128ddc162a4e2c6cd2@ti.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs