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sf1xx: add argc check

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This commit is contained in:
Beat Küng 2018-06-04 14:26:45 +02:00 committed by Lorenz Meier
parent 2a7cd392b1
commit 490ccc0076
1 changed files with 7 additions and 4 deletions
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11
src/drivers/distance_sensor/sf1xx/sf1xx.cpp
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@ -816,25 +816,27 @@ info()
int
sf1xx_main(int argc, char *argv[])
{
// check for optional arguments
int ch;
int myoptind = 1;
const char *myoptarg = nullptr;
uint8_t rotation = distance_sensor_s::ROTATION_DOWNWARD_FACING;
while ((ch = px4_getopt(argc, argv, "R:", &myoptind, &myoptarg)) != EOF) {
switch (ch) {
case 'R':
rotation = (uint8_t)atoi(myoptarg);
PX4_INFO("Setting distance sensor orientation to %d", (int)rotation);
break;
default:
PX4_WARN("Unknown option!");
return -1;
}
}
if (myoptind >= argc) {
goto out_error;
}
/*
* Start/load the driver.
*/
@ -870,6 +872,7 @@ sf1xx_main(int argc, char *argv[])
sf1xx::info();
}
out_error:
PX4_ERR("unrecognized command, try 'start', 'test', 'reset' or 'info'");
return PX4_ERROR;
return -1;
}