Hello, On 2017-10-11 08:16 AM, Wei Yongjun wrote: > In case of error, the function platform_device_register_data() returns > ERR_PTR() and never returns NULL. The NULL test in the return value check > should be replaced with IS_ERR(). > > Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx> > --- > drivers/media/platform/vimc/vimc-core.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/drivers/media/platform/vimc/vimc-core.c b/drivers/media/platform/vimc/vimc-core.c > index 51c0eee..fe088a9 100644 > --- a/drivers/media/platform/vimc/vimc-core.c > +++ b/drivers/media/platform/vimc/vimc-core.c > @@ -267,11 +267,12 @@ static struct component_match *vimc_add_subdevs(struct vimc_device *vimc) > PLATFORM_DEVID_AUTO, > &pdata, > sizeof(pdata)); > - if (!vimc->subdevs[i]) { > + if (IS_ERR(vimc->subdevs[i])) { > + match = ERR_CAST(vimc->subdevs[i]); > while (--i >= 0) > platform_device_unregister(vimc->subdevs[i]); > > - return ERR_PTR(-ENOMEM); > + return match; > } > > component_match_add(&vimc->pdev.dev, &match, vimc_comp_compare, > > > Nice catch, thanks, looks good to me Acked-by: Helen Koike <helen.koike@xxxxxxxxxxxxx>