From 7641c1bafacdfcf0cb5e7da59238fbc501da92d6 Mon Sep 17 00:00:00 2001 From: Fuqian Huang Date: Thu, 4 Jul 2019 00:28:21 +0800 Subject: [PATCH] macintosh: Use kmemdup rather than duplicating its implementation kmemdup is introduced to duplicate a region of memory in a neat way. Rather than kmalloc/kzalloc + memcpy, which the programmer needs to write the size twice (sometimes lead to mistakes), kmemdup improves readability, leads to smaller code and also reduce the chances of mistakes. Suggestion to use kmemdup rather than using kmalloc/kzalloc + memcpy. Signed-off-by: Fuqian Huang [chleroy: Fixed parenthesis alignment] Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20190703162821.32322-1-huangfq.daxian@gmail.com --- drivers/macintosh/adbhid.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/macintosh/adbhid.c b/drivers/macintosh/adbhid.c index 994ba5cb3678..1d355aa9a1dd 100644 --- a/drivers/macintosh/adbhid.c +++ b/drivers/macintosh/adbhid.c @@ -789,7 +789,8 @@ adbhid_input_register(int id, int default_id, int original_handler_id, switch (default_id) { case ADB_KEYBOARD: - hid->keycode = kmalloc(sizeof(adb_to_linux_keycodes), GFP_KERNEL); + hid->keycode = kmemdup(adb_to_linux_keycodes, + sizeof(adb_to_linux_keycodes), GFP_KERNEL); if (!hid->keycode) { err = -ENOMEM; goto fail; @@ -797,8 +798,6 @@ adbhid_input_register(int id, int default_id, int original_handler_id, sprintf(hid->name, "ADB keyboard"); - memcpy(hid->keycode, adb_to_linux_keycodes, sizeof(adb_to_linux_keycodes)); - switch (original_handler_id) { default: keyboard_type = "";