diff options
| author | Chengguang Xu <cgxu519@icloud.com> | 2018-02-06 08:25:55 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-05-30 07:52:04 +0200 |
| commit | e080e814deb129f1e3b928af58f61177bd8e8dab (patch) | |
| tree | 8fcbf948811e0a387a008e9b11cc3c8f3605d071 /fs/ceph | |
| parent | 682def914242d13b41c1196e01582d05008ffd43 (diff) | |
libceph, ceph: avoid memory leak when specifying same option several times
[ Upstream commit 937441f3a3158d5510ca8cc78a82453f57a96365 ]
When parsing string option, in order to avoid memory leak we need to
carefully free it first in case of specifying same option several times.
Signed-off-by: Chengguang Xu <cgxu519@icloud.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/ceph')
| -rw-r--r-- | fs/ceph/super.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ceph/super.c b/fs/ceph/super.c index e4082afedcb1..7d892bbc4f54 100644 --- a/fs/ceph/super.c +++ b/fs/ceph/super.c @@ -224,6 +224,7 @@ static int parse_fsopt_token(char *c, void *private) return -ENOMEM; break; case Opt_mds_namespace: + kfree(fsopt->mds_namespace); fsopt->mds_namespace = kstrndup(argstr[0].from, argstr[0].to-argstr[0].from, GFP_KERNEL); @@ -231,6 +232,7 @@ static int parse_fsopt_token(char *c, void *private) return -ENOMEM; break; case Opt_fscache_uniq: + kfree(fsopt->fscache_uniq); fsopt->fscache_uniq = kstrndup(argstr[0].from, argstr[0].to-argstr[0].from, GFP_KERNEL); |