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
Check to see if allocation by kzalloc() or usb_alloc_urb() was unsuccessful immediately after the allocation. Exit from the function can be right at that point in case of allocation failure. This avoids unnecessary use of usb_alloc_urb() & usb_free_urb() if kzalloc() returns NULL. Also, makes the code better structured & easier to understand. Signed-off-by: Harsh Kumar <harsh1kumar@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>