media: fix precedence in dvb/frontends/tda665x

Message ID 4B87006A.4030303@oracle.com (mailing list archive)
State Superseded, archived
Headers

Commit Message

Randy Dunlap Feb. 25, 2010, 10:57 p.m. UTC
  From: Randy Dunlap <randy.dunlap@oracle.com>

Fix precedence so that data is used correctly.
Fixes sparse warning:
drivers/media/dvb/frontends/tda665x.c:136:55: warning: right shift by bigger than source value

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Manu Abraham <abraham.manu@gmail.com>
---
 drivers/media/dvb/frontends/tda665x.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)


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Comments

Manu Abraham Feb. 26, 2010, 7:45 a.m. UTC | #1
Hi Randy,

Thanks for catching the bug !

On Fri, Feb 26, 2010 at 2:57 AM, Randy Dunlap <randy.dunlap@oracle.com> wrote:
> From: Randy Dunlap <randy.dunlap@oracle.com>
>
> Fix precedence so that data is used correctly.
> Fixes sparse warning:
> drivers/media/dvb/frontends/tda665x.c:136:55: warning: right shift by bigger than source value
>
> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
> Cc: Manu Abraham <abraham.manu@gmail.com>

Reviewed-by: Manu Abraham <manu@linuxtv.org>
Acked-by: Manu Abraham <manu@linuxtv.org>


> ---
>  drivers/media/dvb/frontends/tda665x.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> --- lnx-2633-spr.orig/drivers/media/dvb/frontends/tda665x.c
> +++ lnx-2633-spr/drivers/media/dvb/frontends/tda665x.c
> @@ -133,7 +133,7 @@ static int tda665x_set_state(struct dvb_
>                frequency += config->ref_divider >> 1;
>                frequency /= config->ref_divider;
>
> -               buf[0] = (u8) (frequency & 0x7f00) >> 8;
> +               buf[0] = (u8) ((frequency & 0x7f00) >> 8);
>                buf[1] = (u8) (frequency & 0x00ff) >> 0;
>                buf[2] = 0x80 | 0x40 | 0x02;
>                buf[3] = 0x00;
>
>
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Patch

--- lnx-2633-spr.orig/drivers/media/dvb/frontends/tda665x.c
+++ lnx-2633-spr/drivers/media/dvb/frontends/tda665x.c
@@ -133,7 +133,7 @@  static int tda665x_set_state(struct dvb_
 		frequency += config->ref_divider >> 1;
 		frequency /= config->ref_divider;
 
-		buf[0] = (u8) (frequency & 0x7f00) >> 8;
+		buf[0] = (u8) ((frequency & 0x7f00) >> 8);
 		buf[1] = (u8) (frequency & 0x00ff) >> 0;
 		buf[2] = 0x80 | 0x40 | 0x02;
 		buf[3] = 0x00;