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-rw-r--r--Documentation/serial/driver3
1 files changed, 1 insertions, 2 deletions
diff --git a/Documentation/serial/driver b/Documentation/serial/driver
index 3b08df5bcc17..09e73e061fcf 100644
--- a/Documentation/serial/driver
+++ b/Documentation/serial/driver
@@ -177,8 +177,7 @@ hardware.
should be terminated when another call is made with a zero
ctl.
- Locking: none.
- Interrupts: caller dependent.
+ Locking: caller holds port->mutex
This call must not sleep
startup(port)
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