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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2018-05-31 09:39:57 -0500 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-05-31 09:39:57 -0500 |
| commit | dd52cb879063ca5470d5a093c32180ba74fa528e (patch) | |
| tree | 21adb4719eb2f6f979ccaa69d677dc7708da3d7a /drivers/platform | |
| parent | Merge tag 'for-linus-20180530' of git://git.kernel.dk/linux-block (diff) | |
| parent | platform/x86: asus-wmi: Fix NULL pointer dereference (diff) | |
| download | linux-dev-dd52cb879063ca5470d5a093c32180ba74fa528e.tar.xz linux-dev-dd52cb879063ca5470d5a093c32180ba74fa528e.zip | |
Merge tag 'platform-drivers-x86-v4.17-4' of git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform driver fix from Andy Shevchenko:
"Fix NULL pointer dereference in asus-wmi on rfkill cleanup.
The effective change is just one new condition - two lines of code.
But it required moving one static helper function, which is why the
diff looks a bit bigger"
* tag 'platform-drivers-x86-v4.17-4' of git://git.infradead.org/linux-platform-drivers-x86:
platform/x86: asus-wmi: Fix NULL pointer dereference
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/asus-wmi.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index a32c5c00e0e7..ffffb9909ae1 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -163,6 +163,16 @@ MODULE_LICENSE("GPL"); static const char * const ashs_ids[] = { "ATK4001", "ATK4002", NULL }; +static bool ashs_present(void) +{ + int i = 0; + while (ashs_ids[i]) { + if (acpi_dev_found(ashs_ids[i++])) + return true; + } + return false; +} + struct bios_args { u32 arg0; u32 arg1; @@ -1025,6 +1035,9 @@ static int asus_new_rfkill(struct asus_wmi *asus, static void asus_wmi_rfkill_exit(struct asus_wmi *asus) { + if (asus->driver->wlan_ctrl_by_user && ashs_present()) + return; + asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P5"); asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P6"); asus_unregister_rfkill_notifier(asus, "\\_SB.PCI0.P0P7"); @@ -2121,16 +2134,6 @@ static int asus_wmi_fan_init(struct asus_wmi *asus) return 0; } -static bool ashs_present(void) -{ - int i = 0; - while (ashs_ids[i]) { - if (acpi_dev_found(ashs_ids[i++])) - return true; - } - return false; -} - /* * WMI Driver */ |