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| author | Eyal Reizer <eyalreizer@gmail.com> | 2018-05-28 11:36:42 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-08-03 08:50:28 +0300 |
| commit | 6f8688bf299b35b5d585a96fa670ea257257fbd3 (patch) | |
| tree | 5bcfb9b5325924fbc9e99b3b4efcec012c7ad251 | |
| parent | 852feed35dcdec8521c2f3227545ad2a187a2b3b (diff) | |
| download | linux-6f8688bf299b35b5d585a96fa670ea257257fbd3.tar.xz | |
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: Eyal Reizer <eyalr@ti.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/wireless/ti/wlcore/sdio.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/wireless/ti/wlcore/sdio.c b/drivers/net/wireless/ti/wlcore/sdio.c index f8a1fea64e25..219d1a86b92e 100644 --- a/drivers/net/wireless/ti/wlcore/sdio.c +++ b/drivers/net/wireless/ti/wlcore/sdio.c @@ -406,6 +406,11 @@ 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); |