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Commit a783c6d7 authored by Eyal Reizer's avatar Eyal Reizer Committed by Greg Kroah-Hartman
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wlcore: sdio: check for valid platform device data before suspend 



[ Upstream commit 6e91d48371e79862ea2c05867aaebe4afe55a865 ]

the wl pointer can be null In case only wlcore_sdio is probed while
no WiLink module is successfully probed, as in the case of mounting a
wl12xx module while using a device tree file configured with wl18xx
related settings.
In this case the system was crashing in wl1271_suspend() as platform
device data is not set.
Make sure wl the pointer is valid before using it.

Signed-off-by: default avatarEyal Reizer <eyalr@ti.com>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
Signed-off-by: default avatarSasha Levin <alexander.levin@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a7a336ed

drivers/net/wireless/ti/wlcore/sdio.c

+5 −0
Original line number Diff line number Diff line
@@ -404,6 +404,11 @@ static int wl1271_suspend(struct device *dev) 
	mmc_pm_flag_t sdio_flags;

	int ret = 0;



	if (!wl) {

		dev_err(dev, "no wilink module was probed\n");

		goto out;

	}



	dev_dbg(dev, "wl1271 suspend. wow_enabled: %d\n",

		wl->wow_enabled);