[U-Boot] [PATCH 2/2] cmd_itest.c: fix pointer dereferencing
Detlev Zundel
dzu at denx.de
Tue Feb 23 12:37:38 CET 2010
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 at gmail.com>
You could have included my previously given Acked-by. But anyway:
Acked-by: Detlev Zundel <dzu at denx.de>
> ---
> common/cmd_itest.c | 9 +++++++--
> 1 files changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/common/cmd_itest.c b/common/cmd_itest.c
> index 5b301bf..58c5e7b 100644
> --- a/common/cmd_itest.c
> +++ b/common/cmd_itest.c
> @@ -66,12 +66,17 @@ op_tbl_t op_table [] = {
>
> static long evalexp(char *s, int w)
> {
> - long l, *p;
> + long l = 0;
> + long *p;
>
> /* 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);
> + }
> } else {
> l = simple_strtoul(s, NULL, 16);
> }
--
It's like manually inflatable airbags -- people will never
think to use it in time to actually get any help from it.
-- Miles Bader in <20030607122005.GA1086 at gnu.org>
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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