• Stefan Roese's avatar
    usb: gadget: composite: Fix NULL pointer crash in USB compliance test · 87ed6b10
    Stefan Roese authored
    On the DXR2 board (AM335x using MUSB) the USB compliance test suite
    (USB 2.0 Command Verifier) will cause the board to crash and reset
    upon the "BOS Descriptor Test - Addressed state". Here the output
    from the DRX2 while running this test:
    GADGET DRIVER: usb_dnl_dfu
    musb-hdrc: peripheral reset irq lost!
    composite_setup (776)
    data abort
    pc : [<87f693ac>]          lr : [<87f6911c>]
    sp : 86f33a58  ip : 00000000     fp : 86f3bbac
    r10: 00000f00  r9 : 86f33ef4     r8 : 86f37da8
    r7 : 00000005  r6 : 86f33a90     r5 : 00000000  r4 : 86f37e30
    r3 : 00000000  r2 : 00000000     r1 : 87f9c888  r0 : 00000016
    Flags: Nzcv  IRQs off  FIQs on  Mode SVC_32
    Resetting CPU ...
    resetting ...
    By adding the case statement for USB_DT_BOS and therefore not running
    into the default case (jump to unkown label) this crash is fixed.
    Signed-off-by: default avatarStefan Roese <sr@denx.de>
    Cc: Roger Meier <r.meier@siemens.com>
    Cc: Samuel Egli <samuel.egli@siemens.com>
    Cc: Enrico Leto <enrico.leto@siemens.com>
    Acked-by: default avatarHeiko Schocher <hs@denx.de>
    Cc: Lukasz Majewski <l.majewski@samsung.com>
    Cc: Marek Vasut <marex@denx.de>
composite.c 28.7 KB