From: Toni Wilen <twilen@winuae.net>
Date: Sun, 15 Aug 2021 06:58:28 +0000 (+0300)
Subject: Prevent crash if Gayle IDE was not initialized for some unexpected reason.
X-Git-Tag: 4900~89
X-Git-Url: https://git.unchartedbackwaters.co.uk/w/?a=commitdiff_plain;h=22c192bfe7a31b92c7a6e9443e980db4a6be8e0c;p=francis%2Fwinuae.git

Prevent crash if Gayle IDE was not initialized for some unexpected reason.
---

diff --git a/gayle.cpp b/gayle.cpp
index c8517c4f..6e24e551 100644
--- a/gayle.cpp
+++ b/gayle.cpp
@@ -395,11 +395,16 @@ static int get_gayle_ide_reg (uaecptr addr, struct ide_hdf **ide)
 			addr &= ~IDE_SECONDARY;
 		}
 	}
+	if (idedrive[ide2] == NULL) {
+		return -1;
+	}
 	*ide = idedrive[ide2 + idedrive[ide2]->ide_drv];
+	if (*ide == NULL) {
+		return -1;
+	}
 	return addr;
 }
 
-
 static uae_u32 gayle_read2 (uaecptr addr)
 {
 	struct ide_hdf *ide = NULL;