From: Jiri Slaby <jirislaby@xxxxxxxxx>
Return from bt_rfkill_poll() when hci_get_radio_state() fails.
value is invalid in that case and should not be assigned to the rfkill
state.
This also fixes a double unlock bug.
Signed-off-by: Jiri Slaby <jirislaby@xxxxxxxxx>
Cc: John W. Linville <linville@xxxxxxxxxxxxx>
Cc: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
Cc: Len Brown <len.brown@xxxxxxxxx>
Cc: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/platform/x86/toshiba_acpi.c | 1 +
1 file changed, 1 insertion(+)
diff -puN drivers/platform/x86/toshiba_acpi.c~toshiba_acpi-return-on-a-fail-path drivers/platform/x86/toshiba_acpi.c
--- a/drivers/platform/x86/toshiba_acpi.c~toshiba_acpi-return-on-a-fail-path
+++ a/drivers/platform/x86/toshiba_acpi.c
@@ -335,6 +335,7 @@ static void bt_rfkill_poll(struct rfkill
if (hci_result != HCI_SUCCESS) {
/* Can't do anything useful */
mutex_unlock(&dev->mutex);
+ return;
}
new_rfk_state = value;
_
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