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Better error handling for too large arguments

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Lorenz Meier
2013-06-04 13:32:57 +02:00
parent de8186e050
commit 45fe45fefa
1 changed files with 8 additions and 3 deletions
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src/drivers/px4io/px4io.cpp
+8 -3
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@@ -702,10 +702,12 @@ PX4IO::set_failsafe_values(const uint16_t *vals, unsigned len)
{ {
uint16_t regs[_max_actuators]; uint16_t regs[_max_actuators];
unsigned max = (len < _max_actuators) ? len : _max_actuators; if (len > _max_actuators)
/* fail with error */
return E2BIG;
/* copy values to registers in IO */ /* copy values to registers in IO */
return io_reg_set(PX4IO_PAGE_FAILSAFE_PWM, 0, vals, max); return io_reg_set(PX4IO_PAGE_FAILSAFE_PWM, 0, vals, len);
} }
int int
@@ -1763,7 +1765,10 @@ px4io_main(int argc, char *argv[])
} }
} }
g_dev->set_failsafe_values(failsafe, sizeof(failsafe) / sizeof(failsafe[0])); int ret = g_dev->set_failsafe_values(failsafe, sizeof(failsafe) / sizeof(failsafe[0]));
if (ret != OK)
errx(ret, "failed setting failsafe values");
} else { } else {
errx(1, "not loaded"); errx(1, "not loaded");
} }