RapidIO: fix potential null deref in rio_setup_device()
The "goto cleanup" path can deference "rswitch" when it is NULL. Reported-by: NDan Carpenter <error27@gmail.com> Signed-off-by: NAlexandre Bounine <alexandre.bounine@idt.com> Cc: Dan Carpenter <error27@gmail.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Chul Kim <chul.kim@idt.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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