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;
}
--
2.45.2
