Signed-off-by: Neil Brown <neilb@xxxxxxx>
### Diffstat output
./drivers/md/md.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff .prev/drivers/md/md.c ./drivers/md/md.c
--- .prev/drivers/md/md.c 2007-12-14 16:09:01.000000000 +1100
+++ ./drivers/md/md.c 2007-12-14 16:09:03.000000000 +1100
@@ -2080,12 +2080,18 @@ rdev_attr_store(struct kobject *kobj, st
{
struct rdev_sysfs_entry *entry = container_of(attr, struct rdev_sysfs_entry, attr);
mdk_rdev_t *rdev = container_of(kobj, mdk_rdev_t, kobj);
+ int rv;
if (!entry->store)
return -EIO;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
- return entry->store(rdev, page, length);
+ rv = mddev_lock(rdev->mddev);
+ if (!rv) {
+ rv = entry->store(rdev, page, length);
+ mddev_unlock(rdev->mddev);
+ }
+ return rv;
}
static void rdev_free(struct kobject *ko)
-
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