b43legacy: fix bcm4303 crash
This fixes an hard crash which happened upon driver loading on bcm4303 rev. 2 devices. Signed-off-by: Stefano Brivio <stefano.brivio@polimi.it> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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@ -1044,6 +1044,12 @@ int ssb_bus_may_powerdown(struct ssb_bus *bus)
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goto out;
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cc = &bus->chipco;
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if (!cc->dev)
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goto out;
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if (cc->dev->id.revision < 5)
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goto out;
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ssb_chipco_set_clockmode(cc, SSB_CLKMODE_SLOW);
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err = ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 0);
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if (err)
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