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Date:   Fri, 14 Jun 2019 14:56:31 -0600
From:   Nick Crews <>
        Nick Crews <>
Subject: [PATCH 1/2] platform/chrome: wilco_ec: Fix unreleased lock in event_read()

When copying an event to userspace failed, the event queue
lock was never released. This fixes that.

Reported-by: Dan Carpenter <>
Signed-off-by: Nick Crews <>
 drivers/platform/chrome/wilco_ec/event.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/chrome/wilco_ec/event.c b/drivers/platform/chrome/wilco_ec/event.c
index 4d2776f77dbd..1eed55681598 100644
--- a/drivers/platform/chrome/wilco_ec/event.c
+++ b/drivers/platform/chrome/wilco_ec/event.c
@@ -342,7 +342,7 @@ static ssize_t event_read(struct file *filp, char __user *buf, size_t count,
 				 struct ec_event_entry, list);
 	n_bytes_written = entry->size;
 	if (copy_to_user(buf, &entry->event, n_bytes_written))
-		return -EFAULT;
+		n_bytes_written = -EFAULT;

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