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-rw-r--r--drivers/hwtracing/coresight/coresight-cpu-debug.c15
-rw-r--r--drivers/hwtracing/coresight/coresight-platform.c2
-rw-r--r--drivers/hwtracing/coresight/coresight.c6
-rw-r--r--drivers/hwtracing/intel_th/core.c5
4 files changed, 8 insertions, 20 deletions
diff --git a/drivers/hwtracing/coresight/coresight-cpu-debug.c b/drivers/hwtracing/coresight/coresight-cpu-debug.c
index 58bfd6319f65..2463aa7ab4f6 100644
--- a/drivers/hwtracing/coresight/coresight-cpu-debug.c
+++ b/drivers/hwtracing/coresight/coresight-cpu-debug.c
@@ -525,23 +525,12 @@ static const struct file_operations debug_func_knob_fops = {
static int debug_func_init(void)
{
- struct dentry *file;
int ret;
/* Create debugfs node */
debug_debugfs_dir = debugfs_create_dir("coresight_cpu_debug", NULL);
- if (!debug_debugfs_dir) {
- pr_err("%s: unable to create debugfs directory\n", __func__);
- return -ENOMEM;
- }
-
- file = debugfs_create_file("enable", 0644, debug_debugfs_dir, NULL,
- &debug_func_knob_fops);
- if (!file) {
- pr_err("%s: unable to create enable knob file\n", __func__);
- ret = -ENOMEM;
- goto err;
- }
+ debugfs_create_file("enable", 0644, debug_debugfs_dir, NULL,
+ &debug_func_knob_fops);
/* Register function to be called for panic */
ret = atomic_notifier_chain_register(&panic_notifier_list,
diff --git a/drivers/hwtracing/coresight/coresight-platform.c b/drivers/hwtracing/coresight/coresight-platform.c
index cf580ffbc27c..dad7d96c5943 100644
--- a/drivers/hwtracing/coresight/coresight-platform.c
+++ b/drivers/hwtracing/coresight/coresight-platform.c
@@ -37,7 +37,7 @@ static int coresight_alloc_conns(struct device *dev,
return 0;
}
-int coresight_device_fwnode_match(struct device *dev, void *fwnode)
+int coresight_device_fwnode_match(struct device *dev, const void *fwnode)
{
return dev_fwnode(dev) == fwnode;
}
diff --git a/drivers/hwtracing/coresight/coresight.c b/drivers/hwtracing/coresight/coresight.c
index 86d1fc2c1bd4..55db77f6410b 100644
--- a/drivers/hwtracing/coresight/coresight.c
+++ b/drivers/hwtracing/coresight/coresight.c
@@ -498,9 +498,9 @@ struct coresight_device *coresight_get_sink(struct list_head *path)
return csdev;
}
-static int coresight_enabled_sink(struct device *dev, void *data)
+static int coresight_enabled_sink(struct device *dev, const void *data)
{
- bool *reset = data;
+ const bool *reset = data;
struct coresight_device *csdev = to_coresight_device(dev);
if ((csdev->type == CORESIGHT_DEV_TYPE_SINK ||
@@ -544,7 +544,7 @@ struct coresight_device *coresight_get_enabled_sink(bool deactivate)
return dev ? to_coresight_device(dev) : NULL;
}
-static int coresight_sink_by_id(struct device *dev, void *data)
+static int coresight_sink_by_id(struct device *dev, const void *data)
{
struct coresight_device *csdev = to_coresight_device(dev);
unsigned long hash;
diff --git a/drivers/hwtracing/intel_th/core.c b/drivers/hwtracing/intel_th/core.c
index 033dce563c99..55922896d862 100644
--- a/drivers/hwtracing/intel_th/core.c
+++ b/drivers/hwtracing/intel_th/core.c
@@ -789,10 +789,9 @@ static int intel_th_populate(struct intel_th *th)
return 0;
}
-static int match_devt(struct device *dev, void *data)
+static int match_devt(struct device *dev, const void *data)
{
- dev_t devt = (dev_t)(unsigned long)data;
-
+ dev_t devt = (dev_t)(unsigned long)(void *)data;
return dev->devt == devt;
}