diff mbox series

[v3,6/6] thermal: sun8i: Use scoped device node handling to simplify error paths

Message ID 20241008-b4-cleanup-h-of-node-put-thermal-v3-6-825122398f71@linaro.org
State New
Headers show
Series thermal: scope/cleanup.h improvements | expand

Commit Message

Krzysztof Kozlowski Oct. 8, 2024, 9 a.m. UTC 
Obtain the device node reference with scoped/cleanup.h to reduce error
handling and make the code a bit simpler.

Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 drivers/thermal/sun8i_thermal.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

Comments

Jonathan Cameron Oct. 8, 2024, 12:26 p.m. UTC | #1 
On Tue, 08 Oct 2024 11:00:06 +0200
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> wrote:

> Obtain the device node reference with scoped/cleanup.h to reduce error
> handling and make the code a bit simpler.
> 
> Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
LGTM
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

I wonder if we will eventually get to the point where we might as well
use the scoped case for the few remaining instances where there
is no early exit and then end up dropping the unscoped one.

I guess we'll see. Keep up the good work dealing with all these!

Jonathan
diff mbox series

Patch

diff --git a/drivers/thermal/sun8i_thermal.c b/drivers/thermal/sun8i_thermal.c
index 3203d8bd13a8fc2a9e5a59b3547cefc2440542c6..22674790629a7b549d1ce618998ff51f6553613e 100644
--- a/drivers/thermal/sun8i_thermal.c
+++ b/drivers/thermal/sun8i_thermal.c
@@ -9,6 +9,7 @@ 
  */
 
 #include <linux/bitmap.h>
+#include <linux/cleanup.h>
 #include <linux/clk.h>
 #include <linux/device.h>
 #include <linux/interrupt.h>
@@ -348,19 +349,18 @@  static void sun8i_ths_reset_control_assert(void *data)
 
 static struct regmap *sun8i_ths_get_sram_regmap(struct device_node *node)
 {
-	struct device_node *sram_node;
 	struct platform_device *sram_pdev;
 	struct regmap *regmap = NULL;
 
-	sram_node = of_parse_phandle(node, "allwinner,sram", 0);
+	struct device_node *sram_node __free(device_node) =
+		of_parse_phandle(node, "allwinner,sram", 0);
 	if (!sram_node)
 		return ERR_PTR(-ENODEV);
 
 	sram_pdev = of_find_device_by_node(sram_node);
 	if (!sram_pdev) {
 		/* platform device might not be probed yet */
-		regmap = ERR_PTR(-EPROBE_DEFER);
-		goto out_put_node;
+		return ERR_PTR(-EPROBE_DEFER);
 	}
 
 	/* If no regmap is found then the other device driver is at fault */
@@ -369,8 +369,7 @@  static struct regmap *sun8i_ths_get_sram_regmap(struct device_node *node)
 		regmap = ERR_PTR(-EINVAL);
 
 	platform_device_put(sram_pdev);
-out_put_node:
-	of_node_put(sram_node);
+
 	return regmap;
 }