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Fix null pointer dereference on nodes without a "compatible" property.

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MFC after:	1 week
This commit is contained in:
Nathan Whitehorn 2018-04-30 19:37:32 +00:00
parent e4c7e3a1b9
commit 47280ef170
1 changed files with 2 additions and 1 deletions
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3
sys/powerpc/powermac/macio.c
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@ -399,7 +399,8 @@ macio_attach(device_t dev)
continue; continue;
if (strcmp(ofw_bus_get_name(cdev), "bmac") == 0 || if (strcmp(ofw_bus_get_name(cdev), "bmac") == 0 ||
strcmp(ofw_bus_get_compat(cdev), "bmac+") == 0) { (ofw_bus_get_compat(cdev) != NULL &&
strcmp(ofw_bus_get_compat(cdev), "bmac+") == 0)) {
uint32_t fcr; uint32_t fcr;
fcr = bus_read_4(sc->sc_memr, HEATHROW_FCR); fcr = bus_read_4(sc->sc_memr, HEATHROW_FCR);