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Handle errors from device_get_chidlren.

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Free child list when there's more children than we expected.
This commit is contained in:
imp 2008-08-23 07:38:00 +00:00
parent 0f3a30fb7a
commit ea74865077
1 changed files with 5 additions and 2 deletions
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7
sys/dev/iicbus/iiconf.c
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@ -366,9 +366,12 @@ iicbus_transfer_gen(device_t dev, struct iic_msg *msgs, uint32_t nmsgs)
int i, error, lenread, lenwrote, nkid;
device_t *children, bus;
device_get_children(dev, &children, &nkid);
if (nkid != 1)
if ((error = device_get_children(dev, &children, &nkid)) != 0)
return (error);
if (nkid != 1) {
free(children, M_TEMP);
return (EIO);
}
bus = children[0];
free(children, M_TEMP);
for (i = 0, error = 0; i < nmsgs && error == 0; i++) {