From 2bf49d5a64c6c85cdc7f787c6f5116dd6b99010a Mon Sep 17 00:00:00 2001
From: Thomas Schoebel-Theuer <tst@1und1.de>
Date: Fri, 29 Jan 2021 10:16:51 +0100
Subject: [PATCH] infra: comply to ISO C90
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block/mars/kernel/sy_old/sy_generic.c:3164:2: warning: ISO C90 forbids variable length array ‘paths’ [-Wvla]
---
 kernel/sy_old/sy_generic.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/kernel/sy_old/sy_generic.c b/kernel/sy_old/sy_generic.c
index b6124ecc..331b4233 100644
--- a/kernel/sy_old/sy_generic.c
+++ b/kernel/sy_old/sy_generic.c
@@ -3142,6 +3142,8 @@ EXPORT_SYMBOL_GPL(_aio_brick_type);
 const struct generic_brick_type *_sio_brick_type = NULL;
 EXPORT_SYMBOL_GPL(_sio_brick_type);
 
+#define MAX_PREV_COUNT 8
+
 struct mars_brick *make_brick_all(
 	struct mars_global *global,
 	struct mars_dent *belongs,
@@ -3161,12 +3163,18 @@ struct mars_brick *make_brick_all(
 	const char *new_path;
 	char *_new_path = NULL;
 	struct mars_brick *brick = NULL;
-	char *paths[prev_count + 1];
-	struct mars_brick *prev[prev_count + 1];
+	char *paths[MAX_PREV_COUNT];
+	struct mars_brick *prev[MAX_PREV_COUNT];
 	bool switch_state;
 	int i;
 	int status;
 
+	if (prev_count >= MAX_PREV_COUNT) {
+		MARS_ERR("internal: prev_count=%d too high!\n",
+			 prev_count);
+		goto err;
+	}
+
 	// treat variable arguments
 	va_start(args, prev_count);
 	if (new_fmt) {