[PATCH] misc/pvpanic: fix a NULL vs IS_ERR() check

[Dan Carpenter]

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

Fixes: 46f934c9a12f ("misc/pvpanic: add support to get pvpanic device info FDT")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
---
 drivers/misc/pvpanic.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/misc/pvpanic.c b/drivers/misc/pvpanic.c
index 01241ec6a5cd..595ac065b401 100644
--- a/drivers/misc/pvpanic.c
+++ b/drivers/misc/pvpanic.c
@@ -140,8 +140,8 @@ static int pvpanic_mmio_probe(struct platform_device *pdev)
                return -EINVAL;
 
        base = devm_ioremap_resource(&pdev->dev, mem);
-       if (base == NULL)
-               return -EFAULT;
+       if (IS_ERR(base))
+               return PTR_ERR(base);
 
        atomic_notifier_chain_register(&panic_notifier_list,
                                       &pvpanic_panic_nb);
-- 
2.11.0