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由 Changbing Xiong 提交于
Data type of return value is unsigned int, but in function of dvb_demux_poll, when the pointer of dmxdevfilter equals NULL, it will return -EINVAL, which is invalid. Signed-off-by: NChangbing Xiong <cb.xiong@samsung.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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