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dvbsrc: Handle failure to get statistics from the device

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Check the ioctl return value and don't output bogus values.

CID #206016
This commit is contained in:
Edward Hervey 2014-04-16 15:23:57 +02:00
parent c947e820cf
commit 012b5b8d4a
1 changed files with 8 additions and 5 deletions
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13
sys/dvb/gstdvbsrc.c
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@ -1453,11 +1453,14 @@ gst_dvbsrc_output_frontend_stats (GstDvbSrc * src)
GstStructure *structure;
int fe_fd = src->fd_frontend;
ioctl (fe_fd, FE_READ_STATUS, &status);
ioctl (fe_fd, FE_READ_SIGNAL_STRENGTH, &_signal);
ioctl (fe_fd, FE_READ_SNR, &snr);
ioctl (fe_fd, FE_READ_BER, &ber);
ioctl (fe_fd, FE_READ_UNCORRECTED_BLOCKS, &uncorrected_blocks);
if (ioctl (fe_fd, FE_READ_STATUS, &status) ||
ioctl (fe_fd, FE_READ_SIGNAL_STRENGTH, &_signal) ||
ioctl (fe_fd, FE_READ_SNR, &snr) ||
ioctl (fe_fd, FE_READ_BER, &ber) ||
ioctl (fe_fd, FE_READ_UNCORRECTED_BLOCKS, &uncorrected_blocks)) {
GST_WARNING_OBJECT (src, "Failed to get statistics from the device");
return;
}
structure = gst_structure_new ("dvb-frontend-stats", "status", G_TYPE_INT,
status, "signal", G_TYPE_INT, _signal, "snr", G_TYPE_INT, snr,