linux-kernel - [PATCH] floppy:ERROR: missing put_device; call of_find_device_by_node on line 589, but without a corresponding object release within this function. Add the put_device function before return to release memory

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Date:   Fri, 14 Jul 2023 12:56:29 +0800
From:   liubin001@...suo.com
To:     davem@...emloft.net
Cc:     sparclinux@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] floppy:ERROR: missing put_device; call of_find_device_by_node
 on line 589, but without a corresponding object release within this function.
 Add the put_device function before return to release memory

Signed-off-by: LiuBin <liubin001@...suo.com>
---
  arch/sparc/include/asm/floppy_64.h | 1 +
  1 file changed, 1 insertion(+)

diff --git a/arch/sparc/include/asm/floppy_64.h 
b/arch/sparc/include/asm/floppy_64.h
index 070c8c1f5c8f..c4c51f494f25 100644
--- a/arch/sparc/include/asm/floppy_64.h
+++ b/arch/sparc/include/asm/floppy_64.h
@@ -588,6 +588,7 @@ static unsigned long __init sun_floppy_init(void)

          op = of_find_device_by_node(dp);
          if (!op)
+            put_device(op);
              return 0;

          state_prop = of_get_property(op->dev.of_node, "status", NULL);