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From: Detlev Zundel <dzu@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 2/2] cmd_itest.c: fix pointer dereferencing
Date: Mon, 22 Feb 2010 12:59:27 +0100	[thread overview]
Message-ID: <m2aav14h28.fsf@ohwell.denx.de> (raw)
In-Reply-To: <1266664980-19814-1-git-send-email-fransmeulenbroeks@gmail.com> (Frans Meulenbroeks's message of "Sat, 20 Feb 2010 12:23:00 +0100")

Hi Frans,

> fix pointer dereferencing
> if the size is .b and .w an 8 or 16 bit access is done.
>
> Signed-off-by: Frans Meulenbroeks <fransmeulenbroeks@gmail.com>
> ---
>  common/cmd_itest.c |    9 ++++++---
>  1 files changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/common/cmd_itest.c b/common/cmd_itest.c
> index 5b301bf..6e1079c 100644
> --- a/common/cmd_itest.c
> +++ b/common/cmd_itest.c
> @@ -66,16 +66,19 @@ op_tbl_t op_table [] = {
>  
>  static long evalexp(char *s, int w)
>  {
> -	long l, *p;
> +	long l = 0
> +	long *p;

It takes chuzpe to send patches that do not even compile ;) Who ate the
';'?

>  
>  	/* if the parameter starts with a * then assume is a pointer to the value we want */
>  	if (s[0] == '*') {
>  		p = (long *)simple_strtoul(&s[1], NULL, 16);
> -		l = *p;
> +		switch (w) {
> +		case 1: return((long)(*(unsigned char *)p));
> +		case 2: return((long)(*(unsigned short *)p));
> +		case 4: return(*p);

The switch statement needs to be closed also.

>  	} else {
>  		l = simple_strtoul(s, NULL, 16);
>  	}
> -
>  	return (l & ((1 << (w * 8)) - 1));
>  }

Once you fix the syntax errors -

Acked-by: Detlev Zundel <dzu@denx.de>

Cheers
  Detlev

-- 
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never stop thinking about new ways to harm our country and our people,
and neither do we."
       -- George W. Bush during a defense bill ceremony on 5. Aug 2004
--
DENX Software Engineering GmbH,      MD: Wolfgang Denk & Detlev Zundel
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  reply	other threads:[~2010-02-22 11:59 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-02-20 11:23 [U-Boot] [PATCH 2/2] cmd_itest.c: fix pointer dereferencing Frans Meulenbroeks
2010-02-22 11:59 ` Detlev Zundel [this message]
  -- strict thread matches above, loose matches on Subject: below --
2010-02-22 21:49 Frans Meulenbroeks
2010-02-23 11:37 ` Detlev Zundel
2010-02-23 23:09 ` Wolfgang Denk

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