diff options
| author | Kurt Borja <kuurtb@gmail.com> | 2025-10-14 13:07:27 +0300 |
|---|---|---|
| committer | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2025-10-15 11:11:23 +0300 |
| commit | a49c4d48c3b60926e6a8cec217bf95aa65388ecc (patch) | |
| tree | e918dec0b60f5c2ef72e521803735302edddd0c2 | |
| parent | 3a8660878839faadb4f1a6dd72c3179c1df56787 (diff) | |
| download | linux-a49c4d48c3b60926e6a8cec217bf95aa65388ecc.tar.xz | |
platform/x86: alienware-wmi-wmax: Fix NULL pointer dereference in sleep handlers
Devices without the AWCC interface don't initialize `awcc`. Add a check
before dereferencing it in sleep handlers.
Cc: stable@vger.kernel.org
Reported-by: Gal Hammer <galhammer@gmail.com>
Tested-by: Gal Hammer <galhammer@gmail.com>
Fixes: 07ac275981b1 ("platform/x86: alienware-wmi-wmax: Add support for manual fan control")
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Link: https://patch.msgid.link/20251014-sleep-fix-v3-1-b5cb58da4638@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
| -rw-r--r-- | drivers/platform/x86/dell/alienware-wmi-wmax.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/platform/x86/dell/alienware-wmi-wmax.c b/drivers/platform/x86/dell/alienware-wmi-wmax.c index 31f9643a6a3b..b106e8e407b3 100644 --- a/drivers/platform/x86/dell/alienware-wmi-wmax.c +++ b/drivers/platform/x86/dell/alienware-wmi-wmax.c @@ -1639,7 +1639,7 @@ static int wmax_wmi_probe(struct wmi_device *wdev, const void *context) static int wmax_wmi_suspend(struct device *dev) { - if (awcc->hwmon) + if (awcc && awcc->hwmon) awcc_hwmon_suspend(dev); return 0; @@ -1647,7 +1647,7 @@ static int wmax_wmi_suspend(struct device *dev) static int wmax_wmi_resume(struct device *dev) { - if (awcc->hwmon) + if (awcc && awcc->hwmon) awcc_hwmon_resume(dev); return 0; |