From: Stefan Weil <weil@mail.berlios.de>
To: qemu-trivial <qemu-trivial@nongnu.org>
Cc: qemu-devel@nongnu.org, Aurelien Jarno <aurelien@aurel32.net>
Subject: Re: [Qemu-devel] [PATCH] sh4: Fix potential crash in debug code
Date: Sat, 27 Aug 2011 21:27:27 +0200 [thread overview]
Message-ID: <4E59451F.6010902@mail.berlios.de> (raw)
In-Reply-To: <4E4642F1.5010600@mail.berlios.de>
Am 13.08.2011 11:25, schrieb Stefan Weil:
> Am 20.07.2011 20:56, schrieb Stefan Weil:
>> cppcheck reports this error:
>>
>> qemu/hw/sh_intc.c:390: error: Possible null pointer dereference:
>> s - otherwise it is redundant to check if s is null at line 385
>>
>> If s were NULL, the printf() statement would crash.
>> Setting braces fixes this bug.
>>
>> Signed-off-by: Stefan Weil<weil@mail.berlios.de>
>> ---
>> hw/sh_intc.c | 9 +++++----
>> 1 files changed, 5 insertions(+), 4 deletions(-)
>>
>> diff --git a/hw/sh_intc.c b/hw/sh_intc.c
>> index 0734da9..f73a4b0 100644
>> --- a/hw/sh_intc.c
>> +++ b/hw/sh_intc.c
>> @@ -382,13 +382,14 @@ void sh_intc_register_sources(struct intc_desc
>> *desc,
>>
>> sh_intc_register_source(desc, vect->enum_id, groups, nr_groups);
>> s = sh_intc_source(desc, vect->enum_id);
>> - if (s)
>> - s->vect = vect->vect;
>> + if (s) {
>> + s->vect = vect->vect;
>>
>> #ifdef DEBUG_INTC_SOURCES
>> - printf("sh_intc: registered source %d -> 0x%04x (%d/%d)\n",
>> - vect->enum_id, s->vect, s->enable_count, s->enable_max);
>> + printf("sh_intc: registered source %d -> 0x%04x
>> (%d/%d)\n",
>> + vect->enum_id, s->vect, s->enable_count,
>> s->enable_max);
>> #endif
>> + }
>> }
>>
>> if (groups) {
>
> Ping?
Please add the patch to the trivial queue. More than a month time
for review and comments should be sufficient for trivial patches.
Thanks,
Stefan
next prev parent reply other threads:[~2011-08-27 19:27 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-20 18:56 [Qemu-devel] [PATCH] sh4: Fix potential crash in debug code Stefan Weil
2011-07-20 18:56 ` [Qemu-devel] [PATCH] tcg/mips: Fix regression caused by typo (copy + paste bug) Stefan Weil
2011-07-25 10:22 ` [Qemu-devel] [Qemu-trivial] [PATCH] sh4: Fix potential crash in debug code Stefan Hajnoczi
2011-08-13 9:25 ` [Qemu-devel] " Stefan Weil
2011-08-27 19:27 ` Stefan Weil [this message]
2011-08-28 11:13 ` Andreas Färber
2011-08-29 11:39 ` [Qemu-devel] [Qemu-trivial] " Stefan Hajnoczi
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