1 files changed, 16 insertions, 6 deletions

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index e61d4f8e62a5..5f2027d782e8 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -79,7 +79,7 @@ enum {
         EC_FLAGS_GPE_STORM,             /* GPE storm detected */
         EC_FLAGS_HANDLERS_INSTALLED,    /* Handlers for GPE and
                                          * OpReg are installed */
-        EC_FLAGS_FROZEN,                /* Transactions are suspended */
+        EC_FLAGS_BLOCKED,               /* Transactions are blocked */
 };
 
 /* If we find an EC via the ECDT, we need to keep a ptr to its context */
@@ -293,7 +293,7 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t)
         if (t->rdata)
                 memset(t->rdata, 0, t->rlen);
         mutex_lock(&ec->lock);
-        if (test_bit(EC_FLAGS_FROZEN, &ec->flags)) {
+        if (test_bit(EC_FLAGS_BLOCKED, &ec->flags)) {
                 status = -EINVAL;
                 goto unlock;
         }
@@ -459,7 +459,7 @@ int ec_transaction(u8 command,
 
 EXPORT_SYMBOL(ec_transaction);
 
-void acpi_ec_suspend_transactions(void)
+void acpi_ec_block_transactions(void)
 {
         struct acpi_ec *ec = first_ec;
 
@@ -468,11 +468,11 @@ void acpi_ec_suspend_transactions(void)
 
         mutex_lock(&ec->lock);
         /* Prevent transactions from being carried out */
-        set_bit(EC_FLAGS_FROZEN, &ec->flags);
+        set_bit(EC_FLAGS_BLOCKED, &ec->flags);
         mutex_unlock(&ec->lock);
 }
 
-void acpi_ec_resume_transactions(void)
+void acpi_ec_unblock_transactions(void)
 {
         struct acpi_ec *ec = first_ec;
 
@@ -481,10 +481,20 @@ void acpi_ec_resume_transactions(void)
 
         mutex_lock(&ec->lock);
         /* Allow transactions to be carried out again */
-        clear_bit(EC_FLAGS_FROZEN, &ec->flags);
+        clear_bit(EC_FLAGS_BLOCKED, &ec->flags);
         mutex_unlock(&ec->lock);
 }
 
+void acpi_ec_unblock_transactions_early(void)
+{
+        /*
+         * Allow transactions to happen again (this function is called from
+         * atomic context during wakeup, so we don't need to acquire the mutex).
+         */
+        if (first_ec)
+                clear_bit(EC_FLAGS_BLOCKED, &first_ec->flags);
+}
+
 static int acpi_ec_query_unlocked(struct acpi_ec *ec, u8 * data)
 {
         int result;