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-rw-r--r--drivers/acpi/ec.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index d5309fd49458..ba5b56db9d27 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -173,9 +173,10 @@ static void start_transaction(struct acpi_ec *ec)
173static void advance_transaction(struct acpi_ec *ec, u8 status) 173static void advance_transaction(struct acpi_ec *ec, u8 status)
174{ 174{
175 unsigned long flags; 175 unsigned long flags;
176 struct transaction *t = ec->curr; 176 struct transaction *t;
177 177
178 spin_lock_irqsave(&ec->lock, flags); 178 spin_lock_irqsave(&ec->lock, flags);
179 t = ec->curr;
179 if (!t) 180 if (!t)
180 goto unlock; 181 goto unlock;
181 if (t->wlen > t->wi) { 182 if (t->wlen > t->wi) {