From 05e59e5fb0064c97a1c10921ecd549f2d4a58565 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 09 Oct 2024 06:14:40 +0000
Subject: [PATCH] add REDIRECT
---
kernel/drivers/clk/clk.c | 11 +++++++++++
1 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/kernel/drivers/clk/clk.c b/kernel/drivers/clk/clk.c
index 3d82193..672eb93 100644
--- a/kernel/drivers/clk/clk.c
+++ b/kernel/drivers/clk/clk.c
@@ -253,6 +253,17 @@
}
}
+ /*
+ * This could be called with the enable lock held, or from atomic
+ * context. If the parent isn't enabled already, we can't do
+ * anything here. We can also assume this clock isn't enabled.
+ */
+ if ((core->flags & CLK_OPS_PARENT_ENABLE) && core->parent)
+ if (!clk_core_is_enabled(core->parent)) {
+ ret = false;
+ goto done;
+ }
+
ret = core->ops->is_enabled(core->hw);
done:
if (core->rpm_enabled)
--
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