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| author | Eyal Reizer <eyalreizer@gmail.com> | 2018-05-28 11:36:42 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2018-05-29 10:20:56 +0300 |
| commit | 6e91d48371e79862ea2c05867aaebe4afe55a865 (patch) | |
| tree | 54a601415955c120d9f5dd298a756f2d2a07a175 /drivers/net/wireless/ti | |
| parent | 88027c8ff0a3f87d5d06d53ee25a41b90d8bccec (diff) | |
| download | linux-6e91d48371e79862ea2c05867aaebe4afe55a865.tar.bz2 | |
wlcore: sdio: check for valid platform device data before suspend
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>
Diffstat (limited to 'drivers/net/wireless/ti')
| -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 15d5ac126061..750bea3574ee 100644 --- a/drivers/net/wireless/ti/wlcore/sdio.c +++ b/drivers/net/wireless/ti/wlcore/sdio.c @@ -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); |