diff options
Diffstat (limited to 'channels')
| -rw-r--r-- | channels/chan_dahdi.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/channels/chan_dahdi.c b/channels/chan_dahdi.c index f0ae82650..ce5b28bf2 100644 --- a/channels/chan_dahdi.c +++ b/channels/chan_dahdi.c @@ -6655,7 +6655,7 @@ static int dahdi_queryoption(struct ast_channel *chan, int option, void *data, i struct dahdi_pvt *p = chan->tech_pvt; /* all supported options require data */ - if (!data || (*datalen < 1)) { + if (!p || !data || (*datalen < 1)) { errno = EINVAL; return -1; } @@ -6701,7 +6701,7 @@ static int dahdi_setoption(struct ast_channel *chan, int option, void *data, int /* all supported options require data */ - if (!data || (datalen < 1)) { + if (!p || !data || (datalen < 1)) { errno = EINVAL; return -1; } @@ -6914,6 +6914,12 @@ static int dahdi_func_read(struct ast_channel *chan, const char *function, char struct dahdi_pvt *p = chan->tech_pvt; int res = 0; + if (!p) { + /* No private structure! */ + *buf = '\0'; + return -1; + } + if (!strcasecmp(data, "rxgain")) { ast_mutex_lock(&p->lock); snprintf(buf, len, "%f", p->rxgain); @@ -7047,6 +7053,11 @@ static int dahdi_func_write(struct ast_channel *chan, const char *function, char struct dahdi_pvt *p = chan->tech_pvt; int res = 0; + if (!p) { + /* No private structure! */ + return -1; + } + if (!strcasecmp(data, "buffers")) { int num_bufs, policy; |