[1/6] clk: socfpga: use of_clk_add_hw_provider and improve error handling

Message ID 20221209152913.1335068-2-marpagan@redhat.com
State New
Headers
Series clk: socfpga: use of_clk_add_hw_provider and improve error handling |

Commit Message

Marco Pagani Dec. 9, 2022, 3:29 p.m. UTC
  The function of_clk_add_provider() has been deprecated, so use its
suggested replacement of_clk_add_hw_provider() instead.

Since of_clk_add_hw_provider() can fail, like of_clk_add_provider(),
check its return value and do the error handling.

The indentation of the init function parameters has been aligned
to match open parenthesis, as suggested by checkpatch, and the __init
macro moved before the function name, as specified in init.h.

Signed-off-by: Marco Pagani <marpagan@redhat.com>
---
 drivers/clk/socfpga/clk-periph.c | 26 ++++++++++++++++++++------
 1 file changed, 20 insertions(+), 6 deletions(-)
  

Comments

Stephen Boyd March 21, 2023, 11:53 p.m. UTC | #1
Quoting Marco Pagani (2022-12-09 07:29:08)
> The function of_clk_add_provider() has been deprecated, so use its
> suggested replacement of_clk_add_hw_provider() instead.
> 
> Since of_clk_add_hw_provider() can fail, like of_clk_add_provider(),
> check its return value and do the error handling.
> 
> The indentation of the init function parameters has been aligned
> to match open parenthesis, as suggested by checkpatch, and the __init
> macro moved before the function name, as specified in init.h.
> 
> Signed-off-by: Marco Pagani <marpagan@redhat.com>
> ---

Applied to clk-next
  

Patch

diff --git a/drivers/clk/socfpga/clk-periph.c b/drivers/clk/socfpga/clk-periph.c
index 43707e2d7248..6a4075147b9c 100644
--- a/drivers/clk/socfpga/clk-periph.c
+++ b/drivers/clk/socfpga/clk-periph.c
@@ -47,8 +47,8 @@  static const struct clk_ops periclk_ops = {
 	.get_parent = clk_periclk_get_parent,
 };
 
-static __init void __socfpga_periph_init(struct device_node *node,
-	const struct clk_ops *ops)
+static void __init __socfpga_periph_init(struct device_node *node,
+					 const struct clk_ops *ops)
 {
 	u32 reg;
 	struct clk_hw *hw_clk;
@@ -96,11 +96,25 @@  static __init void __socfpga_periph_init(struct device_node *node,
 	periph_clk->hw.hw.init = &init;
 	hw_clk = &periph_clk->hw.hw;
 
-	if (clk_hw_register(NULL, hw_clk)) {
-		kfree(periph_clk);
-		return;
+	rc = clk_hw_register(NULL, hw_clk);
+	if (rc) {
+		pr_err("Could not register clock:%s\n", clk_name);
+		goto err_clk_hw_register;
+	}
+
+	rc = of_clk_add_hw_provider(node, of_clk_hw_simple_get, hw_clk);
+	if (rc) {
+		pr_err("Could not register clock provider for node:%s\n",
+		       clk_name);
+		goto err_of_clk_add_hw_provider;
 	}
-	rc = of_clk_add_provider(node, of_clk_src_simple_get, hw_clk);
+
+	return;
+
+err_of_clk_add_hw_provider:
+	clk_hw_unregister(hw_clk);
+err_clk_hw_register:
+	kfree(periph_clk);
 }
 
 void __init socfpga_periph_init(struct device_node *node)