mm: 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.

Link: http://lkml.kernel.org/r/20190122152151.16139-14-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: Laura Abbott <labbott@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 6 deletions

diff --git a/mm/memory.c b/mm/memory.c
index 79e0173a7d70..6aff43171a7b 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3334,12 +3334,8 @@ DEFINE_DEBUGFS_ATTRIBUTE(fault_around_bytes_fops,
 
 static int __init fault_around_debugfs(void)
 {
-        void *ret;
-
-        ret = debugfs_create_file_unsafe("fault_around_bytes", 0644, NULL, NULL,
-                        &fault_around_bytes_fops);
-        if (!ret)
-                pr_warn("Failed to create fault_around_bytes in debugfs");
+        debugfs_create_file_unsafe("fault_around_bytes", 0644, NULL, NULL,
+                                   &fault_around_bytes_fops);
         return 0;
 }
 late_initcall(fault_around_debugfs);