[patch] intel_th: checking for ERR_PTR instead of NULL

[Dan Carpenter]

devm_ioremap() returns NULL on error, it doesn't return an ERR_PTR.

Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>

diff --git a/drivers/hwtracing/intel_th/pti.c b/drivers/hwtracing/intel_th/pti.c
index 1e3bbc8..57cbfdc 100644
--- a/drivers/hwtracing/intel_th/pti.c
+++ b/drivers/hwtracing/intel_th/pti.c
@@ -207,8 +207,8 @@ static int intel_th_pti_probe(struct intel_th_device *thdev)
                return -ENODEV;
 
        base = devm_ioremap(dev, res->start, resource_size(res));
-       if (IS_ERR(base))
-               return PTR_ERR(base);
+       if (!base)
+               return -ENOMEM;
 
        pti = devm_kzalloc(dev, sizeof(*pti), GFP_KERNEL);
        if (!pti)
diff --git a/drivers/hwtracing/intel_th/msu.c b/drivers/hwtracing/intel_th/msu.c
index 99f7662..7b73ab9 100644
--- a/drivers/hwtracing/intel_th/msu.c
+++ b/drivers/hwtracing/intel_th/msu.c
@@ -1458,8 +1458,8 @@ static int intel_th_msc_probe(struct intel_th_device 
*thdev)
                return -ENODEV;
 
        base = devm_ioremap(dev, res->start, resource_size(res));
-       if (IS_ERR(base))
-               return PTR_ERR(base);
+       if (!base)
+               return -ENOMEM;
 
        msc = devm_kzalloc(dev, sizeof(*msc), GFP_KERNEL);
        if (!msc)
diff --git a/drivers/hwtracing/intel_th/gth.c b/drivers/hwtracing/intel_th/gth.c
index 673d272..2dc5378 100644
--- a/drivers/hwtracing/intel_th/gth.c
+++ b/drivers/hwtracing/intel_th/gth.c
@@ -635,8 +635,8 @@ static int intel_th_gth_probe(struct intel_th_device *thdev)
                return -ENODEV;
 
        base = devm_ioremap(dev, res->start, resource_size(res));
-       if (IS_ERR(base))
-               return PTR_ERR(base);
+       if (!base)
+               return -ENOMEM;
 
        gth = devm_kzalloc(dev, sizeof(*gth), GFP_KERNEL);
        if (!gth)
diff --git a/drivers/hwtracing/intel_th/sth.c b/drivers/hwtracing/intel_th/sth.c
index e488fcc..56101c3 100644
--- a/drivers/hwtracing/intel_th/sth.c
+++ b/drivers/hwtracing/intel_th/sth.c
@@ -194,16 +194,16 @@ static int intel_th_sth_probe(struct intel_th_device 
*thdev)
                return -ENODEV;
 
        base = devm_ioremap(dev, res->start, resource_size(res));
-       if (IS_ERR(base))
-               return PTR_ERR(base);
+       if (!base)
+               return -ENOMEM;
 
        res = intel_th_device_get_resource(thdev, IORESOURCE_MEM, 1);
        if (!res)
                return -ENODEV;
 
        channels = devm_ioremap(dev, res->start, resource_size(res));
-       if (IS_ERR(channels))
-               return PTR_ERR(channels);
+       if (!channels)
+               return -ENOMEM;
 
        sth = devm_kzalloc(dev, sizeof(*sth), GFP_KERNEL);
        if (!sth)
--
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