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Kees Cook authored
commit 471b095dfe0d693a8d624cbc716d1ee4d74eb437 upstream. An empty firmware request name will trigger warnings when building device names. Make sure this is caught earlier and rejected. The warning was visible via the test_firmware.ko module interface: echo -ne "\x00" > /sys/devices/virtual/misc/test_firmware/trigger_request Reported-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Kees Cook <keescook@chromium.org> Tested-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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