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: Changbing Xiong <cb.xiong@xxxxxxxxxxx> --- drivers/media/dvb-core/dmxdev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) mode change 100644 => 100755 drivers/media/dvb-core/dmxdev.c diff --git a/drivers/media/dvb-core/dmxdev.c b/drivers/media/dvb-core/dmxdev.c old mode 100644 new mode 100755 index c0363f1..7a5c070 --- a/drivers/media/dvb-core/dmxdev.c +++ b/drivers/media/dvb-core/dmxdev.c @@ -1088,7 +1088,7 @@ static unsigned int dvb_demux_poll(struct file *file, poll_table *wait) unsigned int mask = 0; if (!dmxdevfilter) - return -EINVAL; + return POLLERR; poll_wait(file, &dmxdevfilter->buffer.queue, wait); -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html