Access to the 'serial_table' array needs to be protected by the spinlock.
Signed-off-by: Aleksander Morgado <aleksander@xxxxxxxxxxxxx>
---
drivers/net/usb/hso.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index 3c8dfe5..4f6deff 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -607,19 +607,24 @@ static struct hso_serial *get_serial_by_shared_int_and_type(
struct hso_shared_int *shared_int,
int mux)
{
+ struct hso_serial *serial = NULL;
int i, port;
+ unsigned long flags;
port = hso_mux_to_port(mux);
+ spin_lock_irqsave(&serial_table_lock, flags);
for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) {
if (serial_table[i] &&
(dev2ser(serial_table[i])->shared_int == shared_int) &&
((serial_table[i]->port_spec & HSO_PORT_MASK) == port)) {
- return dev2ser(serial_table[i]);
+ serial = dev2ser(serial_table[i]);
+ break;
}
}
+ spin_unlock_irqrestore(&serial_table_lock, flags);
- return NULL;
+ return serial;
}
static struct hso_serial *get_serial_by_index(unsigned index)
--
2.3.1
--
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