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c76a7090f6
In fsg_common_init, we allocate some buffers via memalign(). However, these buffers are never freed. Because of that, we cannot call => ums command multiple times on boards with low memory (CONFIG_SYS_MALLOC_LEN=0x81000): => ums 0 mmc 2 UMS: LUN 0, dev mmc 2, hwpart 0, sector 0x0, count 0x3a3e000 |crq->brequest:0x0 CTRL+C - Operation aborted => ums 0 mmc 2 UMS: LUN 0, dev mmc 2, hwpart 0, sector 0x0, count 0x3a3e000 failed to start <NULL>: -12 g_dnl_register: failed!, error: -12 g_dnl_register failed Make sure the fsg buffers are freed when the gadget is unbound by calling fsg_common_release() in fsg_unbind(). Reported-by: Zixun LI <admin@hifiphile.com> Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> Tested-by: Zixun LI <admin@hifiphile.com> # on SAM9X60 Link: https://lore.kernel.org/r/20250328-ums-gadget-leak-v1-4-3b677db99bde@baylibre.com Signed-off-by: Mattijs Korpershoek <mkorpershoek@kernel.org>