On Thu, Nov 24, 2011 at 09:37:47AM +0100, Wolfram Sang wrote:
> 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@xxxxxxxxxx>
> > > ---
> > > 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.
>
Ben, do you have an opinion on this, leave it there or fix it?
--
Regards,
Shawn
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