* Joel Fernandes <joelf@xxxxxx> [140507 14:53]:
> On 05/07/2014 10:24 AM, Tony Lindgren wrote:
> > * Joel Fernandes <joelf@xxxxxx> [140424 14:44]:
> >> The subsequent devm_ioremap_resource will catch it and print an error, let it
> >> be checked there.
> >>
> >> Signed-off-by: Joel Fernandes <joelf@xxxxxx>
> >> ---
> >> arch/arm/plat-omap/dmtimer.c | 4 ----
> >> 1 file changed, 4 deletions(-)
> >>
> >> diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
> >> index 7e806f9..1fd30fa 100644
> >> --- a/arch/arm/plat-omap/dmtimer.c
> >> +++ b/arch/arm/plat-omap/dmtimer.c
> >> @@ -810,10 +810,6 @@ static int omap_dm_timer_probe(struct platform_device *pdev)
> >> }
> >>
> >> mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> >> - if (unlikely(!mem)) {
> >> - dev_err(dev, "%s: no memory resource.\n", __func__);
> >> - return -ENODEV;
> >> - }
> >>
> >> timer = devm_kzalloc(dev, sizeof(struct omap_dm_timer), GFP_KERNEL);
> >> if (!timer) {
> >
> > We still need to return an error here and not try to continue though.
>
> We are returning an error if mem is NULL so the redundant check is
> unnecessary:
>
> ...
> timer->io_base = devm_ioremap_resource(dev, mem);
> if (IS_ERR(timer->io_base))
> return PTR_ERR(timer->io_base);
Why would you want to even continue omap_dm_timer_probe()
further and allocate memory if platform_get_resource() fails?
Tony
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