[PATCH] soc: ixp4xx: qmgr: Fix an NULL vs IS_ERR() check in probe

[Dan Carpenter]

The devm_ioremap_resource() function doesn't retunr NULL, it returns
error pointers.

Fixes: ecc133c6da60 ("soc: ixp4xx: qmgr: Pass resources")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
---
 drivers/soc/ixp4xx/ixp4xx-qmgr.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/soc/ixp4xx/ixp4xx-qmgr.c b/drivers/soc/ixp4xx/ixp4xx-qmgr.c
index 13a8a13c9b01..bb90670ec160 100644
--- a/drivers/soc/ixp4xx/ixp4xx-qmgr.c
+++ b/drivers/soc/ixp4xx/ixp4xx-qmgr.c
@@ -385,8 +385,8 @@ static int ixp4xx_qmgr_probe(struct platform_device *pdev)
        if (!res)
                return -ENODEV;
        qmgr_regs = devm_ioremap_resource(dev, res);
-       if (!qmgr_regs)
-               return -ENOMEM;
+       if (IS_ERR(qmgr_regs))
+               return PTR_ERR(qmgr_regs);
 
        irq1 = platform_get_irq(pdev, 0);
        if (irq1 <= 0)
-- 
2.18.0