genirq/debugfs: No need to check return value of debugfs_create functions

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.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Link: https://lkml.kernel.org/r/20190122152151.16139-50-gregkh@linuxfoundation.org

diff --git a/kernel/irq/debugfs.c b/kernel/irq/debugfs.c
index 6f63613..bbd783a 100644 (file)
--- a/kernel/irq/debugfs.c
+++ b/kernel/irq/debugfs.c
@@ -256,8 +256,6 @@ static int __init irq_debugfs_init(void)
        int irq;
 
        root_dir = debugfs_create_dir("irq", NULL);
-       if (!root_dir)
-               return -ENOMEM;
 
        irq_domain_debugfs_init(root_dir);
 

diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 8b0be4b..45c7437 100644 (file)
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -1749,8 +1749,6 @@ void __init irq_domain_debugfs_init(struct dentry *root)
        struct irq_domain *d;
 
        domain_dir = debugfs_create_dir("domains", root);
-       if (!domain_dir)
-               return;
 
        debugfs_create_file("default", 0444, domain_dir, NULL,
                            &irq_domain_debug_fops);