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authorDenis Kirjanov <kirjanov@gmail.com>2012-10-25 19:42:58 +0400
committerBorislav Petkov <bp@alien8.de>2012-11-28 11:56:52 +0100
commit2d56b109e3a50cf316e60f07541bbeb1d8fe251a (patch)
tree097069078a1e669ec9fe4b5fa8b917e91daa4ee1 /drivers/edac/edac_mc_sysfs.c
parentd5c6770d4cb27bc33aa433cf8fb848ad9af6644b (diff)
downloadlinaro-lsk-2d56b109e3a50cf316e60f07541bbeb1d8fe251a.tar.gz
EDAC: Handle error path in edac_mc_sysfs_init() properly
Make sure proper deregistration happens on all error paths in edac_mc_sysfs_init. Signed-off-by: Denis Kirjanov <kirjanov@gmail.com> [ Boris: cleanup and concretize commit message ] Signed-off-by: Borislav Petkov <bp@alien8.de>
Diffstat (limited to 'drivers/edac/edac_mc_sysfs.c')
-rw-r--r--drivers/edac/edac_mc_sysfs.c17
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
index 52813b8b0f5..de2df92f9c7 100644
--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c
@@ -1126,10 +1126,15 @@ int __init edac_mc_sysfs_init(void)
edac_subsys = edac_get_sysfs_subsys();
if (edac_subsys == NULL) {
edac_dbg(1, "no edac_subsys\n");
- return -EINVAL;
+ err = -EINVAL;
+ goto out;
}
mci_pdev = kzalloc(sizeof(*mci_pdev), GFP_KERNEL);
+ if (!mci_pdev) {
+ err = -ENOMEM;
+ goto out_put_sysfs;
+ }
mci_pdev->bus = edac_subsys;
mci_pdev->type = &mc_attr_type;
@@ -1138,11 +1143,18 @@ int __init edac_mc_sysfs_init(void)
err = device_add(mci_pdev);
if (err < 0)
- return err;
+ goto out_dev_free;
edac_dbg(0, "device %s created\n", dev_name(mci_pdev));
return 0;
+
+ out_dev_free:
+ kfree(mci_pdev);
+ out_put_sysfs:
+ edac_put_sysfs_subsys();
+ out:
+ return err;
}
void __exit edac_mc_sysfs_exit(void)
@@ -1150,4 +1162,5 @@ void __exit edac_mc_sysfs_exit(void)
put_device(mci_pdev);
device_del(mci_pdev);
edac_put_sysfs_subsys();
+ kfree(mci_pdev);
}