On 4/1/2019 4:50 PM, Peng Hao wrote:
of_find_device_by_node() takes a reference to the struct device
when it finds a match via get_device. When returning error we should
call put_device.

Signed-off-by: Peng Hao <peng.h...@zte.com.cn>
---
  arch/arm/mach-at91/pm.c | 4 +++-
  1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index 51e808a..b60fcc9 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -591,7 +591,7 @@ static int __init at91_pm_backup_init(void)
np = of_find_compatible_node(NULL, NULL, "atmel,sama5d2-securam");
        if (!np)
-               goto securam_fail;
+               goto securam_fail_1;
pdev = of_find_device_by_node(np);
        of_node_put(np);


I think you missed the label in

if (!pdev)

    goto securam_fail_1


Please fix that and also if possible give some proper name to the label.

Cheers,
Mukesh

@@ -620,6 +620,8 @@ static int __init at91_pm_backup_init(void)
        return 0;
securam_fail:
+       put_device(&pdev->dev);
+securam_fail_1:



        iounmap(pm_data.sfrbu);
        pm_data.sfrbu = NULL;
        return ret;

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