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[ Upstream commit 201c53c687f2b55a7cc6d9f4000af4797860174b ] Introduce the free_usb_request() function that frees both the request's buffer and the request itself. This function serves as the cleanup callback for DEFINE_FREE() to enable automatic, scope-based cleanup for usb_request pointers. Signed-off-by: Kuen-Han Tsai <khtsai@google.com> Link: https://lore.kernel.org/r/20250916-ready-v1-2-4997bf277548@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20250916-ready-v1-2-4997bf277548@google.com Stable-dep-of: 75a5b8d4ddd4 ("usb: gadget: f_ncm: Refactor bind path to use __free()") Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>