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brcmfmac: Do not crash if platform data is not populated 

The driver looks for pdata->oob_irq_supported to find out if wowl can be
supported. However, not all platforms populate pdata in which case we crash
the kernel because of NULL pointer dereference.

Fixes: 330b4e4be9 ("brcmfmac: Add wowl support for SDIO devices.")
Reported-by: Christophe Prigent <christophe.prigent@intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Mika Westerberg 2014-12-23 16:48:32 +02:00 committed by Kalle Valo
parent dddd60220f
commit 8975842bed
1 changed files with 2 additions and 2 deletions
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4
drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
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@ -1070,7 +1070,7 @@ static int brcmf_ops_sdio_probe(struct sdio_func *func,
*/
if ((sdio_get_host_pm_caps(sdiodev->func[1]) & MMC_PM_KEEP_POWER) &&
((sdio_get_host_pm_caps(sdiodev->func[1]) & MMC_PM_WAKE_SDIO_IRQ) ||
(sdiodev->pdata->oob_irq_supported)))
(sdiodev->pdata && sdiodev->pdata->oob_irq_supported)))
bus_if->wowl_supported = true;
#endif
@ -1167,7 +1167,7 @@ static int brcmf_ops_sdio_resume(struct device *dev)
struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
brcmf_dbg(SDIO, "Enter\n");
if (sdiodev->pdata->oob_irq_supported)
if (sdiodev->pdata && sdiodev->pdata->oob_irq_supported)
disable_irq_wake(sdiodev->pdata->oob_irq_nr);
brcmf_sdio_wd_timer(sdiodev->bus, BRCMF_WD_POLL_MS);
atomic_set(&sdiodev->suspend, false);