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From: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Martyn Welch <martyn@welchs.me.uk>,
	Manohar Vanga <manohar.vanga@gmail.com>
Cc: devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org,
	Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Subject: [PATCH] vme: 8-bit status/id takes 256 values, not 255
Date: Sun, 11 Oct 2015 01:00:58 +0300	[thread overview]
Message-ID: <1444514458-15098-1-git-send-email-dmitry.kalinkin@gmail.com> (raw)

Fixes an off by one array size.

Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
---
 drivers/vme/vme_bridge.h | 4 +++-
 include/linux/vme.h      | 3 +++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/vme/vme_bridge.h b/drivers/vme/vme_bridge.h
index 397578a..b59cbee 100644
--- a/drivers/vme/vme_bridge.h
+++ b/drivers/vme/vme_bridge.h
@@ -1,6 +1,8 @@
 #ifndef _VME_BRIDGE_H_
 #define _VME_BRIDGE_H_
 
+#include <linux/vme.h>
+
 #define VME_CRCSR_BUF_SIZE (508*1024)
 /*
  * Resource structures
@@ -91,7 +93,7 @@ struct vme_callback {
 
 struct vme_irq {
 	int count;
-	struct vme_callback callback[255];
+	struct vme_callback callback[VME_NUM_STATUSID];
 };
 
 /* Allow 16 characters for name (including null character) */
diff --git a/include/linux/vme.h b/include/linux/vme.h
index c013135..71e4a6d 100644
--- a/include/linux/vme.h
+++ b/include/linux/vme.h
@@ -81,6 +81,9 @@ struct vme_resource {
 
 extern struct bus_type vme_bus_type;
 
+/* Number of VME interrupt vectors */
+#define VME_NUM_STATUSID	256
+
 /* VME_MAX_BRIDGES comes from the type of vme_bus_numbers */
 #define VME_MAX_BRIDGES		(sizeof(unsigned int)*8)
 #define VME_MAX_SLOTS		32
-- 
1.8.3.1


             reply	other threads:[~2015-10-10 22:01 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-10 22:00 Dmitry Kalinkin [this message]
2015-10-18 13:30 ` Martyn Welch
2015-10-18 17:07   ` Dmitry Kalinkin
2015-10-18 18:22     ` Martyn Welch

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