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-rw-r--r--drivers/platform/x86/classmate-laptop.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/platform/x86/classmate-laptop.c b/drivers/platform/x86/classmate-laptop.c
index d2b7720c0e6f..3dabd00b1d5a 100644
--- a/drivers/platform/x86/classmate-laptop.c
+++ b/drivers/platform/x86/classmate-laptop.c
@@ -522,18 +522,20 @@ static int cmpc_rfkill_block(void *data, bool blocked)
acpi_status status;
acpi_handle handle;
unsigned long long state;
+ bool is_blocked;
handle = data;
status = cmpc_get_rfkill_wlan(handle, &state);
if (ACPI_FAILURE(status))
return -ENODEV;
- if (blocked)
- state &= ~1;
- else
- state |= 1;
- status = cmpc_set_rfkill_wlan(handle, state);
- if (ACPI_FAILURE(status))
- return -ENODEV;
+ /* Check if we really need to call cmpc_set_rfkill_wlan */
+ is_blocked = state & 1 ? false : true;
+ if (is_blocked != blocked) {
+ state = blocked ? 0 : 1;
+ status = cmpc_set_rfkill_wlan(handle, state);
+ if (ACPI_FAILURE(status))
+ return -ENODEV;
+ }
return 0;
}