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MuORB: handle case on no args passed

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if only uorb is called with no other args it crashes.

Handle the case where no args are passed.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>
This commit is contained in:
Mark Charlebois 2015-03-25 10:57:58 -07:00
parent cf71db74d7
commit dffb8bb62c
1 changed files with 11 additions and 1 deletions
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12
src/modules/uORB/MuORB.cpp
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@ -1021,6 +1021,11 @@ info()
} // namespace
static void usage()
{
warnx("Usage: uorb 'start', 'test', 'latency_test' or 'status'");
}
/*
* uORB server 'main'.
*/
@ -1029,6 +1034,11 @@ extern "C" { __EXPORT int uorb_main(int argc, char *argv[]); }
int
uorb_main(int argc, char *argv[])
{
if (argc < 2) {
usage();
return -EINVAL;
}
/*
* Start/load the driver.
*
@ -1086,7 +1096,7 @@ uorb_main(int argc, char *argv[])
if (!strcmp(argv[1], "status"))
return info();
warnx("unrecognized command, try 'start', 'test', 'latency_test' or 'status'");
usage();
return -EINVAL;
}