Retrieve the number of reserved locks for OMAP by using the
of_hwspin_lock_get_num_reserved_locks() OF helper function
provided by the hwspinlock core. The range sanity check will
be performed by the hwspinlock core during the registration.
Signed-off-by: Suman Anna <s-anna@xxxxxx>
---
drivers/hwspinlock/omap_hwspinlock.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/hwspinlock/omap_hwspinlock.c b/drivers/hwspinlock/omap_hwspinlock.c
index 1d0c78e..0dad783 100644
--- a/drivers/hwspinlock/omap_hwspinlock.c
+++ b/drivers/hwspinlock/omap_hwspinlock.c
@@ -143,6 +143,12 @@ static int omap_hwspinlock_probe(struct platform_device *pdev)
for (i = 0, hwlock = &bank->lock[0]; i < num_locks; i++, hwlock++)
hwlock->priv = io_base + LOCK_BASE_OFFSET + sizeof(u32) * i;
+ reserved_locks = of_hwspin_lock_get_num_reserved_locks(node);
+ if (reserved_locks < 0) {
+ ret = -EINVAL;
+ goto iounmap_base;
+ }
+
ret = hwspin_lock_register(bank, &pdev->dev, &omap_hwspinlock_ops,
base_id, num_locks, reserved_locks);
if (ret)
--
1.9.2
--
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