Messages in this thread | | | Date | Fri, 27 Sep 2013 21:44:29 +0200 | From | Richard Weinberger <> | Subject | Re: [PATCH] UBI: fastmap: fix a mem leak on error path |
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Am 27.09.2013 17:37, schrieb Richard Genoud: > If the scan_pool() function fails, the "free" list is not freed. > This leads to destroy_ai(ai) complaining with: > "kmem_cache_destroy ubi_ainf_peb_slab: Slab cache still has objects"
Hmm, I *think* we need to take care about used and eba_orphans too. Tomorrow I'll have time to investigate...
Thanks, //richard
> Signed-off-by: Richard Genoud <richard.genoud@gmail.com> > --- > drivers/mtd/ubi/fastmap.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/mtd/ubi/fastmap.c b/drivers/mtd/ubi/fastmap.c > index 05067f5..22eb527 100644 > --- a/drivers/mtd/ubi/fastmap.c > +++ b/drivers/mtd/ubi/fastmap.c > @@ -841,6 +841,10 @@ static int ubi_attach_fastmap(struct ubi_device *ubi, > fail_bad: > ret = UBI_BAD_FASTMAP; > fail: > + list_for_each_entry_safe(tmp_aeb, _tmp_aeb, &free, u.list) { > + kmem_cache_free(ai->aeb_slab_cache, tmp_aeb); > + list_del(&tmp_aeb->u.list); > + } > return ret; > } > >
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