From e0f70c42bc156339d3018b1c6eff03a532266c5a Mon Sep 17 00:00:00 2001
From: Manuel Coenen <manuel@duet3d.com>
Date: Wed, 20 Jan 2021 11:52:09 +0100
Subject: Fix nullptr access in LookupPinName

---
 src/Duet3Mini/Pins_Duet3Mini.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/Duet3Mini')

diff --git a/src/Duet3Mini/Pins_Duet3Mini.cpp b/src/Duet3Mini/Pins_Duet3Mini.cpp
index 4acf87c2..500f8051 100644
--- a/src/Duet3Mini/Pins_Duet3Mini.cpp
+++ b/src/Duet3Mini/Pins_Duet3Mini.cpp
@@ -30,6 +30,10 @@ bool LookupPinName(const char *pn, LogicalPin &lpin, bool &hardwareInverted) noe
 	for (size_t lp = 0; lp < ARRAY_SIZE(PinTable); ++lp)
 	{
 		const char *q = PinTable[lp].pinNames;
+		if (q == nullptr)
+		{
+			continue;
+		}
 		while (*q != 0)
 		{
 			// Try the next alias in the list of names for this pin
-- 
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