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px4-firmware
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Fixed up nullptr handling

This commit is contained in:
Lorenz Meier 2014-02-05 09:34:21 +01:00
parent 1ef7320e0c
commit 94b162d0e0
1 changed files with 11 additions and 5 deletions
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16
src/drivers/mkblctrl/mkblctrl.cpp
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@ -1176,8 +1176,11 @@ mk_start(unsigned motors, char *device_path)
// try i2c3 first
g_mk = new MK(3, device_path);
if (g_mk && OK == g_mk->init(motors)) {
fprintf(stderr, "[mkblctrl] scanning i2c3...\n");
if (!g_mk)
return -ENOMEM;
if (OK == g_mk->init(motors)) {
warnx("[mkblctrl] scanning i2c3...\n");
ret = g_mk->mk_check_for_blctrl(8, false, true);
if (ret > 0) {
return OK;
@ -1190,8 +1193,11 @@ mk_start(unsigned motors, char *device_path)
// fallback to bus 1
g_mk = new MK(1, device_path);
if (g_mk && OK == g_mk->init(motors)) {
fprintf(stderr, "[mkblctrl] scanning i2c1...\n");
if (!g_mk)
return -ENOMEM;
if (OK == g_mk->init(motors)) {
warnx("[mkblctrl] scanning i2c1...\n");
ret = g_mk->mk_check_for_blctrl(8, false, true);
if (ret > 0) {
return OK;
@ -1201,7 +1207,7 @@ mk_start(unsigned motors, char *device_path)
delete g_mk;
g_mk = nullptr;
return -ENOMEM;
return -ENXIO;
}