From c6b97bcf8e3ee6643a7f90a54d1ef3f9e12ec245 Mon Sep 17 00:00:00 2001 From: Alexey Khoroshilov Date: Thu, 5 Feb 2015 22:12:42 -0800 Subject: [PATCH] EDAC: Properly unwind on failure path in edac_init() edac_init() does not deallocate already allocated resources on failure path. Found by Linux Driver Verification project (linuxtesting.org). [ Boris: The unwind path functions have __exit annotation but are being used in an __init function, leading to section mismatches. Drop the section annotation and make them normal functions. ] Signed-off-by: Alexey Khoroshilov Link: http://lkml.kernel.org/r/1423203162-26368-1-git-send-email-khoroshilov@ispras.ru Signed-off-by: Borislav Petkov --- drivers/edac/edac_mc_sysfs.c | 4 ++-- drivers/edac/edac_module.c | 13 ++++++++----- 2 files changed, 10 insertions(+), 7 deletions(-) diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c index 3a283819970b..112d63ad1154 100644 --- a/drivers/edac/edac_mc_sysfs.c +++ b/drivers/edac/edac_mc_sysfs.c @@ -914,7 +914,7 @@ int __init edac_debugfs_init(void) return 0; } -void __exit edac_debugfs_exit(void) +void edac_debugfs_exit(void) { debugfs_remove(edac_debugfs); } @@ -1155,7 +1155,7 @@ int __init edac_mc_sysfs_init(void) return err; } -void __exit edac_mc_sysfs_exit(void) +void edac_mc_sysfs_exit(void) { device_unregister(mci_pdev); edac_put_sysfs_subsys(); diff --git a/drivers/edac/edac_module.c b/drivers/edac/edac_module.c index e6d1691dfa45..9cb082a19d8a 100644 --- a/drivers/edac/edac_module.c +++ b/drivers/edac/edac_module.c @@ -112,20 +112,23 @@ static int __init edac_init(void) err = edac_mc_sysfs_init(); if (err) - goto error; + goto err_sysfs; edac_debugfs_init(); - /* Setup/Initialize the workq for this core */ err = edac_workqueue_setup(); if (err) { - edac_printk(KERN_ERR, EDAC_MC, "init WorkQueue failure\n"); - goto error; + edac_printk(KERN_ERR, EDAC_MC, "Failure initializing workqueue\n"); + goto err_wq; } return 0; -error: +err_wq: + edac_debugfs_exit(); + edac_mc_sysfs_exit(); + +err_sysfs: return err; }