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Re: [Qemu-devel] [PATCH 8/8] audio: Fix using freed pointer in wav_fini_


From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH 8/8] audio: Fix using freed pointer in wav_fini_out()
Date: Tue, 27 May 2014 15:36:59 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.5.0

Il 27/05/2014 03:40, address@hidden ha scritto:
From: Gonglei <address@hidden>

Spotted by Coverity:

(8) Event freed_arg:  "fclose(FILE *)" frees "wav->f".
(9) Event cond_true:  Condition "fclose(wav->f)", taking true branch
Also see events:  [pass_freed_arg]

212         if (fclose (wav->f))  {
(10) Event pass_freed_arg:  Passing freed pointer "wav->f" as an argument
to function "AUD_log(char const *, char const *, ...)".
Also see events:  [freed_arg]

213             dolog ("wav_fini_out: fclose %p failed\nReason: %s\n",
214                    wav->f, strerror (errno));

Removed wav->f's pointer in error log, actually it's uselessly.

Signed-off-by: Gonglei <address@hidden>
---
 audio/wavaudio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/audio/wavaudio.c b/audio/wavaudio.c
index 6846a1a..9bbe8e9 100644
--- a/audio/wavaudio.c
+++ b/audio/wavaudio.c
@@ -210,8 +210,8 @@ static void wav_fini_out (HWVoiceOut *hw)

  doclose:
     if (fclose (wav->f))  {
-        dolog ("wav_fini_out: fclose %p failed\nReason: %s\n",
-               wav->f, strerror (errno));
+        dolog ("wav_fini_out: fclose 'wav->f' failed\nReason: %s\n",
+              strerror (errno));
     }
     wav->f = NULL;



Reviewed-by: Paolo Bonzini <address@hidden>



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