On 11/30/24 11:07, Dan Carpenter wrote: > The devm_ioremap() function doesn't return error pointers, it returns > NULL. Update the error checking to match. > > Fixes: 5d4d263e1c6b ("mailbox: Introduce support for T-head TH1520 Mailbox driver") > Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> > --- > drivers/mailbox/mailbox-th1520.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/drivers/mailbox/mailbox-th1520.c b/drivers/mailbox/mailbox-th1520.c > index 4e84640ac3b8..e16e7c85ee3c 100644 > --- a/drivers/mailbox/mailbox-th1520.c > +++ b/drivers/mailbox/mailbox-th1520.c > @@ -387,8 +387,10 @@ static void __iomem *th1520_map_mmio(struct platform_device *pdev, > > mapped = devm_ioremap(&pdev->dev, res->start + offset, > resource_size(res) - offset); > - if (IS_ERR(mapped)) > + if (!mapped) { > dev_err(&pdev->dev, "Failed to map resource: %s\n", res_name); > + return ERR_PTR(-ENOMEM); > + } > > return mapped; > } Looks good, thanks ! Reviewed-by: Michal Wilczynski <m.wilczynski@xxxxxxxxxxx>