Messages in this thread Patch in this message | | | Date | Thu, 19 Mar 2015 14:30:43 +0300 | From | "Dmitry V. Levin" <> | Subject | [PATCH] vfs: show_vfsstat: do not ignore errors from show_devname method |
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Explicitly check show_devname method return code and bail out in case of an error. This fixes regression introduced by commit 9d4d65748a5c.
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org> --- fs/proc_namespace.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/fs/proc_namespace.c b/fs/proc_namespace.c index 8db932d..a5644c4 100644 --- a/fs/proc_namespace.c +++ b/fs/proc_namespace.c @@ -196,17 +196,19 @@ static int show_vfsstat(struct seq_file *m, struct vfsmount *mnt) if (sb->s_op->show_devname) { seq_puts(m, "device "); err = sb->s_op->show_devname(m, mnt_path.dentry); + if (err) + goto out; } else { if (r->mnt_devname) { seq_puts(m, "device "); mangle(m, r->mnt_devname); } else seq_puts(m, "no device"); } /* mount point */ seq_puts(m, " mounted on "); /* mountpoints outside of chroot jail will give SEQ_SKIP on this */ err = seq_path_root(m, &mnt_path, &p->root, " \t\n\\"); if (err) goto out; -- ldv
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