uwb: i1480-dfu: fix NULL-deref at probe
commit 4ce36271 upstream. Make sure to check the number of endpoints to avoid dereferencing a NULL-pointer should a malicious device lack endpoints. Note that the dereference happens in the cmd and wait_init_done callbacks which are called during probe. Fixes: 1ba47da5 ("uwb: add the i1480 DFU driver") Cc: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> Cc: David Vrabel <david.vrabel@csr.com> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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