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authorAlexey Khoroshilov <khoroshilov@ispras.ru>2015-02-05 22:12:42 -0800
committerBorislav Petkov <bp@suse.de>2015-02-23 13:13:07 +0100
commitc6b97bcf8e3ee6643a7f90a54d1ef3f9e12ec245 (patch)
treee95d43f3b02159c2f70e2fbbdd564415509173c9
parentfc7cc6b7820b54119821a3c6838ff583d796a2ab (diff)
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 <khoroshilov@ispras.ru> Link: http://lkml.kernel.org/r/1423203162-26368-1-git-send-email-khoroshilov@ispras.ru Signed-off-by: Borislav Petkov <bp@suse.de>
-rw-r--r--drivers/edac/edac_mc_sysfs.c4
-rw-r--r--drivers/edac/edac_module.c13
2 files changed, 10 insertions, 7 deletions
diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
index 3a28381..112d63a 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 e6d1691..9cb082a 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;
}