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SubjectRe: [PATCH] Replace faulty is_hex_digit() by isxdigit()
Date
On Thursday, July 31, 2014 09:31:37 AM Randy Dunlap wrote:
> On 07/31/14 02:04, Arjun Sreedharan wrote:
> > 0 is ascii for NULL. Hex digit matching should be from '0'.
> > Faulty version returns true for #,$,%,& etc.
> >
> > Signed-off-by: Arjun Sreedharan <arjun024@gmail.com>
>
> Acked-by: Randy Dunlap <rdunlap@infradead.org>

Applied, thanks!

> Thanks.
>
> > ---
> > drivers/acpi/acpi_pnp.c | 8 ++------
> > 1 file changed, 2 insertions(+), 6 deletions(-)
> >
> > diff --git a/drivers/acpi/acpi_pnp.c b/drivers/acpi/acpi_pnp.c
> > index 4ddb0dc..996fa19 100644
> > --- a/drivers/acpi/acpi_pnp.c
> > +++ b/drivers/acpi/acpi_pnp.c
> > @@ -12,6 +12,7 @@
> >
> > #include <linux/acpi.h>
> > #include <linux/module.h>
> > +#include <linux/ctype.h>
> >
> > static const struct acpi_device_id acpi_pnp_device_ids[] = {
> > /* soc_button_array */
> > @@ -320,11 +321,6 @@ static const struct acpi_device_id acpi_pnp_device_ids[] = {
> > {""},
> > };
> >
> > -static bool is_hex_digit(char c)
> > -{
> > - return (c >= 0 && c <= '9') || (c >= 'A' && c <= 'F');
> > -}
> > -
> > static bool matching_id(char *idstr, char *list_id)
> > {
> > int i;
> > @@ -335,7 +331,7 @@ static bool matching_id(char *idstr, char *list_id)
> > for (i = 3; i < 7; i++) {
> > char c = toupper(idstr[i]);
> >
> > - if (!is_hex_digit(c)
> > + if (!isxdigit(c)
> > || (list_id[i] != 'X' && c != toupper(list_id[i])))
> > return false;
> > }
> >
>
>
>

--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.


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