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| author | Denis Kirjanov <kirjanov@gmail.com> | 2012-10-25 19:42:58 +0400 |
|---|---|---|
| committer | Borislav Petkov <bp@alien8.de> | 2012-11-28 11:56:52 +0100 |
| commit | 2d56b109e3a50cf316e60f07541bbeb1d8fe251a (patch) | |
| tree | 097069078a1e669ec9fe4b5fa8b917e91daa4ee1 /drivers/edac/edac_mc_sysfs.c | |
| parent | d5c6770d4cb27bc33aa433cf8fb848ad9af6644b (diff) | |
| download | lwn-2d56b109e3a50cf316e60f07541bbeb1d8fe251a.tar.gz lwn-2d56b109e3a50cf316e60f07541bbeb1d8fe251a.zip | |
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.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c index 52813b8b0f5f..de2df92f9c77 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); } |