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coresight: cpu-debug: no need to check return value of debugfs_create functions

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When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Tested-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2019-06-18 17:52:46 +02:00
parent 7c7e301406
commit 200f3a3fec
1 changed files with 2 additions and 13 deletions
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15
drivers/hwtracing/coresight/coresight-cpu-debug.c
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@ -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,