4.14-stable review patch. If anyone has any objections, please let me know.
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From: Guenter Roeck linux@roeck-us.net
commit 0631fb8b027f5968c2f5031f0b3ff7be3e4bebcc upstream.
The driver exit function needs to unregister both platform device and driver. Also, during registration, register driver first and perform error checks.
Fixes: 049a59db34eb ("firmware: Google VPD sysfs driver") Signed-off-by: Guenter Roeck linux@roeck-us.net Tested-by: Randy Dunlap rdunlap@infradead.org Reviewed-by: Dmitry Torokhov dmitry.torokhov@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/firmware/google/vpd.c | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-)
--- a/drivers/firmware/google/vpd.c +++ b/drivers/firmware/google/vpd.c @@ -326,21 +326,29 @@ static struct platform_driver vpd_driver }, };
+static struct platform_device *vpd_pdev; + static int __init vpd_platform_init(void) { - struct platform_device *pdev; - - pdev = platform_device_register_simple("vpd", -1, NULL, 0); - if (IS_ERR(pdev)) - return PTR_ERR(pdev); + int ret;
- platform_driver_register(&vpd_driver); + ret = platform_driver_register(&vpd_driver); + if (ret) + return ret; + + vpd_pdev = platform_device_register_simple("vpd", -1, NULL, 0); + if (IS_ERR(vpd_pdev)) { + platform_driver_unregister(&vpd_driver); + return PTR_ERR(vpd_pdev); + }
return 0; }
static void __exit vpd_platform_exit(void) { + platform_device_unregister(vpd_pdev); + platform_driver_unregister(&vpd_driver); }
module_init(vpd_platform_init);