Patchwork powerpc/ps3: Fix memory leak in device init

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Submitter Geoff Levand
Date Oct. 30, 2008, 6:17 p.m.
Message ID <4909FA2E.80202@am.sony.com>
Download mbox | patch
Permalink /patch/6566/
State Accepted, archived
Commit d4ad304841a9790d4fa35e51d6aa9baeba631559
Delegated to: Paul Mackerras
Headers show

Comments

Geoff Levand - Oct. 30, 2008, 6:17 p.m.
From: Masakazu Mokuno <mokuno@sm.sony.co.jp>

Free dynamically allocated device data structures when device registration
fails.  This fixes memory leakage when the registration fails.

Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
---
 arch/powerpc/platforms/ps3/device-init.c |   29 ++++++++++++++++++++++++-----
 1 file changed, 24 insertions(+), 5 deletions(-)

Patch

--- a/arch/powerpc/platforms/ps3/device-init.c
+++ b/arch/powerpc/platforms/ps3/device-init.c
@@ -314,11 +314,17 @@  static int __init ps3_setup_vuart_device
 
 	result = ps3_system_bus_device_register(&p->dev);
 
-	if (result)
+	if (result) {
 		pr_debug("%s:%d ps3_system_bus_device_register failed\n",
 			__func__, __LINE__);
-
+		goto fail_device_register;
+	}
 	pr_debug(" <- %s:%d\n", __func__, __LINE__);
+	return 0;
+
+fail_device_register:
+	kfree(p);
+	pr_debug(" <- %s:%d fail\n", __func__, __LINE__);
 	return result;
 }
 
@@ -463,11 +469,17 @@  static int __init ps3_register_sound_dev
 
 	result = ps3_system_bus_device_register(&p->dev);
 
-	if (result)
+	if (result) {
 		pr_debug("%s:%d ps3_system_bus_device_register failed\n",
 			__func__, __LINE__);
-
+		goto fail_device_register;
+	}
 	pr_debug(" <- %s:%d\n", __func__, __LINE__);
+	return 0;
+
+fail_device_register:
+	kfree(p);
+	pr_debug(" <- %s:%d failed\n", __func__, __LINE__);
 	return result;
 }
 
@@ -491,11 +503,18 @@  static int __init ps3_register_graphics_
 
 	result = ps3_system_bus_device_register(&p->dev);
 
-	if (result)
+	if (result) {
 		pr_debug("%s:%d ps3_system_bus_device_register failed\n",
 			__func__, __LINE__);
+		goto fail_device_register;
+	}
 
 	pr_debug(" <- %s:%d\n", __func__, __LINE__);
+	return 0;
+
+fail_device_register:
+	kfree(p);
+	pr_debug(" <- %s:%d failed\n", __func__, __LINE__);
 	return result;
 }