devm_ioremap_resource returns ERR_PTR so we can't check for NULL.

Signed-off-by: Joel Stanley <j...@jms.id.au>
---
 drivers/char/ipmi/bt-bmc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/char/ipmi/bt-bmc.c b/drivers/char/ipmi/bt-bmc.c
index 2e880bf0be26..de64bf1f2f4d 100644
--- a/drivers/char/ipmi/bt-bmc.c
+++ b/drivers/char/ipmi/bt-bmc.c
@@ -438,8 +438,8 @@ static int bt_bmc_probe(struct platform_device *pdev)
        }
 
        bt_bmc->base = devm_ioremap_resource(&pdev->dev, res);
-       if (!bt_bmc->base)
-               return -ENOMEM;
+       if (IS_ERR(bt_bmc->base))
+               return PTR_ERR(bt_bmc->base);
 
        mutex_init(&bt_bmc->mutex);
        init_waitqueue_head(&bt_bmc->queue);
-- 
2.9.3


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