Commit e2a2e56e4082 ("arm64: dump: no need to check return value of debugfs_create functions") changed the return value from 'int' to 'void'. ../drivers/firmware/efi/arm-runtime.c: In function ‘ptdump_init’: ../drivers/firmware/efi/arm-runtime.c:52:9: error: void value not ignored as it ought to be return ptdump_debugfs_register(&efi_ptdump_info, "efi_page_tables"); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../drivers/firmware/efi/arm-runtime.c:53:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ Rework so that function 'ptdump_init' doesn't 'return ptdump_debug_fs_register(...' since the function can work or not, but the code logic should never do something different based on this. Signed-off-by: Anders Roxell <anders.roxell@xxxxxxxxxx> --- drivers/firmware/efi/arm-runtime.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/firmware/efi/arm-runtime.c b/drivers/firmware/efi/arm-runtime.c index 352bd2473162..b9ae798192d6 100644 --- a/drivers/firmware/efi/arm-runtime.c +++ b/drivers/firmware/efi/arm-runtime.c @@ -49,7 +49,8 @@ static int __init ptdump_init(void) if (!efi_enabled(EFI_RUNTIME_SERVICES)) return 0; - return ptdump_debugfs_register(&efi_ptdump_info, "efi_page_tables"); + ptdump_debugfs_register(&efi_ptdump_info, "efi_page_tables"); + return 0; } device_initcall(ptdump_init); -- 2.20.1