35 lines
1.1 KiB
Diff
35 lines
1.1 KiB
Diff
From 93686f8ba8c1ed6bf559dbfda53f9c7d702c76b5 Mon Sep 17 00:00:00 2001
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From: Lubomir Rintel <lkundrak@v3.sk>
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Date: Thu, 21 Jul 2016 18:13:58 +0200
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Subject: [PATCH] usb_modeswitch: don't return a value from stack
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The memory is not allocated anymore when the function returns and that
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causes no end of mayhem and undefined behavior.
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Let's make it static so that it's perserved after the return. It wastes
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LINE_DIM bytes of memory and requires the caller to consume the value
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before another call, but that's no problem.
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http://www.draisberghof.de/usb_modeswitch/bb/viewtopic.php?f=2&t=2557
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---
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usb_modeswitch.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/usb_modeswitch.c b/usb_modeswitch.c
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index f9c8b2e..3373ccf 100644
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--- a/usb_modeswitch.c
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+++ b/usb_modeswitch.c
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@@ -1855,7 +1855,8 @@ char* ReadParseParam(const char* FileName, char *VariableName)
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char *FirstQuote, *LastQuote, *P1, *P2;
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int Line=0;
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unsigned Len=0, Pos=0;
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- char Str[LINE_DIM], *token, *configPos;
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+ static char Str[LINE_DIM];
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+ char *token, *configPos;
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FILE *file = NULL;
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// Reading and storing input during the first call
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--
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2.7.4
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