| Date | Fri, 25 Jan 2013 15:25:03 +0100 | From | Peter Ujfalusi <> | Subject | Re: [PATCH 09/19] mfd/twl4030: don't warn about uninitialized return code |
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On 01/25/2013 03:14 PM, Arnd Bergmann wrote: > If the twl4030_write_script function gets called with > a zero length argument, its return value does not > get set. We know that all scripts have a nonzero > length, but returning an error in case they ever > do is probably appropriate. > > Without this patch, building omap2plus_defconfig results in: > > drivers/mfd/twl4030-power.c: In function 'load_twl4030_script': > drivers/mfd/twl4030-power.c:414:5: error: 'err' may be used uninitialized in this function
I've fixed up Kevin's email since he is no longer with TI and added Tero to the CC list since this is *something*-power on OMAP platforms ;)
Reviewed-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de> > Cc: Samuel Ortiz <sameo@linux.intel.com> > Cc: Peter Ujfalusi <peter.ujfalusi@ti.com> > Cc: Kevin Hilman <khilman@ti.com> > Cc: Amit Kucheria <amit.kucheria@linaro.org> > --- > drivers/mfd/twl4030-power.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/mfd/twl4030-power.c b/drivers/mfd/twl4030-power.c > index 4dae241..dd362c1 100644 > --- a/drivers/mfd/twl4030-power.c > +++ b/drivers/mfd/twl4030-power.c > @@ -159,7 +159,7 @@ out: > static int twl4030_write_script(u8 address, struct twl4030_ins *script, > int len) > { > - int err; > + int err = -EINVAL; > > for (; len; len--, address++, script++) { > if (len == 1) { >
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