linux-kernel - [PATCH] ACPI /amba: Fix meaningless code for amba_register_dummy

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Date: Sun, 16 Jun 2024 17:40:30 +0800
From: Youwan Wang <youwan@...china.com>
To: lpieralisi@...nel.org
Cc: guohanjun@...wei.com,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	lenb@...nel.org,
	Youwan Wang <youwan@...china.com>
Subject: [PATCH] ACPI /amba: Fix meaningless code for amba_register_dummy_clk()

Defining `amba_dummy_clk` as static is meaningless.

Theconditional check `if (amba_dummy_clk)` is intended to
determine whether the clock has already been registered.
However,in this function, the variable `amba_dummy_clk`
will always be NULL.

Signed-off-by: Youwan Wang <youwan@...china.com>
---
 drivers/acpi/arm64/amba.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/acpi/arm64/amba.c b/drivers/acpi/arm64/amba.c
index 60be8ee1dbdc..ef438417cc80 100644
--- a/drivers/acpi/arm64/amba.c
+++ b/drivers/acpi/arm64/amba.c
@@ -35,11 +35,7 @@ static const struct acpi_device_id amba_id_list[] = {
 
 static void amba_register_dummy_clk(void)
 {
-	static struct clk *amba_dummy_clk;
-
-	/* If clock already registered */
-	if (amba_dummy_clk)
-		return;
+	struct clk *amba_dummy_clk;
 
 	amba_dummy_clk = clk_register_fixed_rate(NULL, "apb_pclk", NULL, 0, 0);
 	clk_register_clkdev(amba_dummy_clk, "apb_pclk", NULL);
-- 
2.25.1