[PATCH 2/3] firmware: vpd: Tie firmware kobject to device lifetime

[Guenter Roeck]

It doesn't make sense to have /sys/firmware/vpd if the device is not
instantiated, so tie its lifetime to the device.

Fixes: 049a59db34eb ("firmware: Google VPD sysfs driver")
Signed-off-by: Guenter Roeck <li...@roeck-us.net>
---
 drivers/firmware/google/vpd.c | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/drivers/firmware/google/vpd.c b/drivers/firmware/google/vpd.c
index 84217172297b..942e358efa60 100644
--- a/drivers/firmware/google/vpd.c
+++ b/drivers/firmware/google/vpd.c
@@ -295,7 +295,17 @@ static int vpd_probe(struct platform_device *pdev)
        if (ret)
                return ret;
 
-       return vpd_sections_init(entry.cbmem_addr);
+       vpd_kobj = kobject_create_and_add("vpd", firmware_kobj);
+       if (!vpd_kobj)
+               return -ENOMEM;
+
+       ret = vpd_sections_init(entry.cbmem_addr);
+       if (ret) {
+               kobject_put(vpd_kobj);
+               return ret;
+       }
+
+       return 0;
 }
 
 static int vpd_remove(struct platform_device *pdev)
@@ -303,6 +313,8 @@ static int vpd_remove(struct platform_device *pdev)
        vpd_section_destroy(&ro_vpd);
        vpd_section_destroy(&rw_vpd);
 
+       kobject_put(vpd_kobj);
+
        return 0;
 }
 
@@ -322,10 +334,6 @@ static int __init vpd_platform_init(void)
        if (IS_ERR(pdev))
                return PTR_ERR(pdev);
 
-       vpd_kobj = kobject_create_and_add("vpd", firmware_kobj);
-       if (!vpd_kobj)
-               return -ENOMEM;
-
        platform_driver_register(&vpd_driver);
 
        return 0;
@@ -333,7 +341,6 @@ static int __init vpd_platform_init(void)
 
 static void __exit vpd_platform_exit(void)
 {
-       kobject_put(vpd_kobj);
 }
 
 module_init(vpd_platform_init);
-- 
2.7.4