Messages in this thread | | | Date | Sat, 2 Oct 2021 17:44:23 +0200 | From | Sebastian Reichel <> | Subject | Re: [PATCH] power: reset: at91-reset: check properly the return value of devm_of_iomap |
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Hi,
On Thu, Sep 30, 2021 at 01:09:28PM +0300, Claudiu Beznea wrote: > devm_of_iomap() returns error code or valid pointer. Check its return > value with IS_ERR(). > > Fixes: bd3127733f2c ("power: reset: at91-reset: use devm_of_iomap") > Reported-by: Cristian Birsan <cristian.birsan@microchip.com> > Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> > ---
Thanks, queued.
-- Sebastian
> drivers/power/reset/at91-reset.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/power/reset/at91-reset.c b/drivers/power/reset/at91-reset.c > index 026649409135..64def79d557a 100644 > --- a/drivers/power/reset/at91-reset.c > +++ b/drivers/power/reset/at91-reset.c > @@ -193,7 +193,7 @@ static int __init at91_reset_probe(struct platform_device *pdev) > return -ENOMEM; > > reset->rstc_base = devm_of_iomap(&pdev->dev, pdev->dev.of_node, 0, NULL); > - if (!reset->rstc_base) { > + if (IS_ERR(reset->rstc_base)) { > dev_err(&pdev->dev, "Could not map reset controller address\n"); > return -ENODEV; > } > @@ -203,7 +203,7 @@ static int __init at91_reset_probe(struct platform_device *pdev) > for_each_matching_node_and_match(np, at91_ramc_of_match, &match) { > reset->ramc_lpr = (u32)match->data; > reset->ramc_base[idx] = devm_of_iomap(&pdev->dev, np, 0, NULL); > - if (!reset->ramc_base[idx]) { > + if (IS_ERR(reset->ramc_base[idx])) { > dev_err(&pdev->dev, "Could not map ram controller address\n"); > of_node_put(np); > return -ENODEV; > -- > 2.25.1 > [unhandled content-type:application/pgp-signature] | |