aboutsummaryrefslogtreecommitdiff
path: root/drivers/edac/edac_mc_sysfs.c
diff options
context:
space:
mode:
authorMauro Carvalho Chehab <mchehab@redhat.com>2010-08-12 13:09:21 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-10-24 11:20:37 -0200
commitac99768c534ebde637b506ce9a6f5638d2049a5d (patch)
treeaeb1327e67e74639245da214f586e43e334990b2 /drivers/edac/edac_mc_sysfs.c
parent6fe1108f14f4f9581af97cab752f37dc8fa9fdec (diff)
downloadlinaro-lsk-ac99768c534ebde637b506ce9a6f5638d2049a5d.tar.gz
edac_core: Don't let free(mci) happen while using it
A very nasty bug were happening on edac core, due to the way mci objects are freed. mci memory is freed when kobject count reaches zero, by edac_mci_control_release(). However, from the logs, this is clearly happening before the final usage of mci struct: [15799.607454] EDAC DEBUG: in drivers/edac/edac_mc_sysfs.c, line at 640: edac_mci_control_release() mci instance idx=0 releasing [15799.618773] EDAC DEBUG: in drivers/edac/edac_mc_sysfs.c, line at 769: edac_inst_grp_release() [15799.627326] EDAC DEBUG: in drivers/edac/edac_mc_sysfs.c, line at 894: edac_remove_mci_instance_attributes() end of seeking for group all_channel_counts [15799.640887] EDAC DEBUG: in drivers/edac/edac_mc_sysfs.c, line at 877: edac_remove_mci_instance_attributes() sysfs_attrib = ffffffffa01d7240 [15799.653412] EDAC DEBUG: in drivers/edac/edac_mc_sysfs.c, line at 1020: edac_remove_sysfs_mci_device() remove_link [15799.663753] EDAC DEBUG: in drivers/edac/edac_mc_sysfs.c, line at 1024: edac_remove_sysfs_mci_device() remove_mci_instance Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/edac/edac_mc_sysfs.c')
-rw-r--r--drivers/edac/edac_mc_sysfs.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
index 5a5734c1f6a..7024b873a3b 100644
--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c
@@ -759,8 +759,6 @@ static void edac_inst_grp_release(struct kobject *kobj)
grp = container_of(kobj, struct mcidev_sysfs_group_kobj, kobj);
mci = grp->mci;
-
- kobject_put(&mci->edac_mci_kobj);
}
/* Intermediate show/store table */