Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1282108 > unrolled thread

[RESEND v2 PATCH 1/4] vfs: show_vfsstat: do not ignore errors from show_devname method

Back to article view | Back to linux.kernel

This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by below is the oldest one visible, not the original post.

Contents

  [RESEND v2 PATCH 1/4] vfs: show_vfsstat: do not ignore errors from show_devname method "Dmitry V. Levin" <ldv@altlinux.org> - 2015-12-02 18:30 +0100

#1282108 — [RESEND v2 PATCH 1/4] vfs: show_vfsstat: do not ignore errors from show_devname method

Date: Thu, 19 Mar 2015 11:10:54 +0000

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 8ebd9a3..876459559 100644
--- a/fs/proc_namespace.c
+++ b/fs/proc_namespace.c
@@ -197,17 +197,19 @@ 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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[toc] | [standalone]

Back to top | Article view | linux.kernel

csiph-web