[PATCH] i2c-mxs: fix compile warning in mxs_i2c_xfer()

[Wolfram Sang]

On Thu, Nov 24, 2011 at 09:29:03AM +0100, Uwe Kleine-König wrote:
> Hello Shawn,
> 
> On Thu, Nov 24, 2011 at 03:52:20PM +0800, Shawn Guo wrote:
> >   CC      drivers/i2c/busses/i2c-mxs.o
> > drivers/i2c/busses/i2c-mxs.c: In function ‘mxs_i2c_xfer’:
> > drivers/i2c/busses/i2c-mxs.c:196:6: warning: ‘data’ may be used uninitialized in this function
> > 
> > Signed-off-by: Shawn Guo <shawn.guo at linaro.org>
> > ---
> >  drivers/i2c/busses/i2c-mxs.c |    2 +-
> >  1 files changed, 1 insertions(+), 1 deletions(-)
> > 
> > diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c
> > index 7e78f7c..00f098f 100644
> > --- a/drivers/i2c/busses/i2c-mxs.c
> > +++ b/drivers/i2c/busses/i2c-mxs.c
> > @@ -193,7 +193,7 @@ static int mxs_i2c_wait_for_data(struct mxs_i2c_dev *i2c)
> >  
> >  static int mxs_i2c_finish_read(struct mxs_i2c_dev *i2c, u8 *buf, int len)
> >  {
> > -	u32 data;
> > +	u32 data = 0;
> >  	int i;
> >  
> >  	for (i = 0; i < len; i++) {
> Looks like a stupid compiler. Then better use 
> 
> 	u32 uninitialized_var(data);

Leave it as it is and fix the compiler? Will do another test later to make
sure.

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