Commit d0f98e14 authored by Dan Carpenter's avatar Dan Carpenter Committed by Jassi Brar
Browse files

mailbox: th1520: Fix a NULL vs IS_ERR() bug 



The devm_ioremap() function doesn't return error pointers, it returns
NULL.  Update the error checking to match.

Fixes: 5d4d263e ("mailbox: Introduce support for T-head TH1520 Mailbox driver")
Signed-off-by: default avatarDan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: default avatarMichal Wilczynski <m.wilczynski@samsung.com>
Signed-off-by: default avatarJassi Brar <jassisinghbrar@gmail.com>
parent 5bc55a33

drivers/mailbox/mailbox-th1520.c

+3 −1
Original line number Diff line number Diff line
@@ -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;

}