vfs: show_vfsstat: do not ignore errors from show_devname method
[ Upstream commitwifi-calibration5f8d498d43
] Explicitly check show_devname method return code and bail out in case of an error. This fixes regression introduced by commit9d4d65748a
. Cc: stable@vger.kernel.org Signed-off-by: Dmitry V. Levin <ldv@altlinux.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
parent
03d44e3d9d
commit
452718f548
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@ -196,6 +196,8 @@ static int show_vfsstat(struct seq_file *m, struct vfsmount *mnt)
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if (sb->s_op->show_devname) {
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seq_puts(m, "device ");
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err = sb->s_op->show_devname(m, mnt_path.dentry);
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if (err)
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goto out;
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} else {
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if (r->mnt_devname) {
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seq_puts(m, "device ");
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