intel_th: Check for NULL instead of ERR_PTR

devm_ioremap() returns NULL on error, it doesn't return an ERR_PTR,
which is what the current code does. This patch corrects these
checks.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

4 files changed, 10 insertions, 10 deletions

diff --git a/drivers/hwtracing/intel_th/gth.c b/drivers/hwtracing/intel_th/gth.c
index 673d272ee400..2dc5378ccd3a 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/msu.c b/drivers/hwtracing/intel_th/msu.c
index 80a12384ed20..70ca27e45602 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/pti.c b/drivers/hwtracing/intel_th/pti.c
index 1e3bbc89825c..57cbfdcc7ef0 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/sth.c b/drivers/hwtracing/intel_th/sth.c
index e488fccbfdec..56101c33e10f 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)