The code here is checking for IS_ERR() when request_mem_region() only
returns NULL on error and never an ERR_PTR.
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
diff --git a/drivers/mcb/mcb-pci.c b/drivers/mcb/mcb-pci.c
index 5e1bd5d..2d6524a 100644
--- a/drivers/mcb/mcb-pci.c
+++ b/drivers/mcb/mcb-pci.c
@@ -56,9 +56,9 @@ static int mcb_pci_probe(struct pci_dev *pdev, const struct
pci_device_id *id)
res = request_mem_region(priv->mapbase, CHAM_HEADER_SIZE,
KBUILD_MODNAME);
- if (IS_ERR(res)) {
+ if (!res) {
dev_err(&pdev->dev, "Failed to request PCI memory\n");
- ret = PTR_ERR(res);
+ ret = -EBUSY;
goto err_start;
}
--
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