lib/fault-inject-usercopy.c: use PTR_ERR_OR_ZERO() to simplify code

Use the standard error pointer macro to shorten the code and simplify.

Link: https://lkml.kernel.org/r/20250812084045.64218-1-zhao.xichao@vivo.com
Signed-off-by: Xichao Zhao <zhao.xichao@vivo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/lib/fault-inject-usercopy.c b/lib/fault-inject-usercopy.c
index 77558b6c29cae01772ef5d5d546875b96e780c3c..75403ec50f49d2e2d8cc6756b14f350fc9f43f19 100644 (file)
--- a/lib/fault-inject-usercopy.c
+++ b/lib/fault-inject-usercopy.c
@@ -22,10 +22,8 @@ static int __init fail_usercopy_debugfs(void)
 
        dir = fault_create_debugfs_attr("fail_usercopy", NULL,
                                        &fail_usercopy.attr);
-       if (IS_ERR(dir))
-               return PTR_ERR(dir);
 
-       return 0;
+       return PTR_ERR_OR_ZERO(dir);
 }
 
 late_initcall(fail_usercopy_debugfs);