From 22fe201be4e68870e45819776a59f754bad309df Mon Sep 17 00:00:00 2001
From: Henrique Ferrolho <ferrolho@users.noreply.github.com>
Date: Tue, 5 Oct 2021 17:16:37 +0100
Subject: [PATCH] Adds `maxabs` check in `norm2`

---
 src/linalg.jl | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/linalg.jl b/src/linalg.jl
index d0f072eb..ba461286 100644
--- a/src/linalg.jl
+++ b/src/linalg.jl
@@ -268,6 +268,8 @@ end
         elseif p == 1
             @inbounds return $expr_p1
         elseif p == 2
+            maxabs = mapreduce(norm, max, a)
+            (maxabs == 0 || isinf(maxabs)) && return maxabs
             return norm(a)
         elseif p == 0
             return mapreduce(_norm_p0, +, a)