From: Jeff Layton Date: Thu, 5 Dec 2019 13:41:25 +0000 (-0500) Subject: ceph: ensure we have a new cap before continuing in fill_inode X-Git-Tag: v5.10.7~3275^2~18 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9a6bed4fe0c8bf57785cbc4db9f86086cb9b193d;p=platform%2Fkernel%2Flinux-rpi.git ceph: ensure we have a new cap before continuing in fill_inode If the caller passes in a NULL cap_reservation, and we can't allocate one then ensure that we fail gracefully. Signed-off-by: Jeff Layton Signed-off-by: Ilya Dryomov --- diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index 5bdc1af..b5f0685 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -753,8 +753,11 @@ static int fill_inode(struct inode *inode, struct page *locked_page, info_caps = le32_to_cpu(info->cap.caps); /* prealloc new cap struct */ - if (info_caps && ceph_snap(inode) == CEPH_NOSNAP) + if (info_caps && ceph_snap(inode) == CEPH_NOSNAP) { new_cap = ceph_get_cap(mdsc, caps_reservation); + if (!new_cap) + return -ENOMEM; + } /* * prealloc xattr data, if it looks like we'll need it. only