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wlcore: sdio: check for valid platform device data before suspend

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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: Eyal Reizer <eyalr@ti.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Eyal Reizer 2018-05-28 11:36:42 +03:00 • committed by Kalle Valo
commit 6e91d48371
1 changed files with 5 additions and 0 deletions
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5
drivers/net/wireless/ti/wlcore/sdio.c
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@ -399,6 +399,11 @@ 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);