On Wed, Apr 08, 2009 at 10:13:03AM +0200, Jean Delvare wrote:
> Hi Geert,
> 
> On Tue, 7 Apr 2009 22:20:29 +0200, Geert Uytterhoeven wrote:
> > On Sat, Mar 28, 2009 at 22:39, Jean Delvare <[email protected]> wrote:
> > > Please pull the i2c subsystem updates for Linux 2.6.30 from:
> > 
> > > Wolfram Sang (4):
> > >      i2c-algo-pca: Rework waiting for a free bus
> > 
> > This one introduced:
> > 
> > drivers/i2c/algos/i2c-algo-pca.c:197: warning: 'state' is used
> > uninitialized in this function
> > 
> > Probably
> > 
> >         while (pca_status(adap) != 0xf8) {
> > 
> > should become
> > 
> >         while ((state = pca_status(adap)) != 0xf8) {
> > 
> > again.
> 
> You're perfectly right, I must have missed it because I didn't build
> any kernel with CONFIG_I2C_DEBUG_ALGO=y for a long time. Here's the fix
> I will push to Linus soon:
> 
> From: Jean Delvare <[email protected]>
> Subject: i2c-algo-pca: Fix use of uninitialized variable in debug message
> 
> A recent change broke debugging of pca_xfer(), fix it.
> 
> Reported-by: Geert Uytterhoeven <[email protected]>
> Signed-off-by: Jean Delvare <[email protected]>
> Cc: Wolfram Sang <[email protected]>

Heh, I was too slow :)

Acked-by: Wolfram Sang <[email protected]>

> ---
>  drivers/i2c/algos/i2c-algo-pca.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> --- linux-2.6.30-rc1.orig/drivers/i2c/algos/i2c-algo-pca.c    2009-04-08 
> 08:52:48.000000000 +0200
> +++ linux-2.6.30-rc1/drivers/i2c/algos/i2c-algo-pca.c 2009-04-08 
> 10:06:36.000000000 +0200
> @@ -190,7 +190,7 @@ static int pca_xfer(struct i2c_adapter *
>       int completed = 1;
>       unsigned long timeout = jiffies + i2c_adap->timeout;
>  
> -     while (pca_status(adap) != 0xf8) {
> +     while ((state = pca_status(adap)) != 0xf8) {
>               if (time_before(jiffies, timeout)) {
>                       msleep(10);
>               } else {
> 
> 
> -- 
> Jean Delvare
> --
> To unsubscribe from this list: send the line "unsubscribe linux-i2c" in
> the body of a message to [email protected]
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

-- 
Pengutronix e.K.                           | Wolfram Sang                |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

Attachment: signature.asc
Description: Digital signature

Reply via email to