From: Jinjie Ruan Date: Tue, 19 Sep 2023 05:06:50 +0000 (+0800) Subject: wifi: rtw88: debug: Fix the NULL vs IS_ERR() bug for debugfs_create_file() X-Git-Tag: v5.15.139~219 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1afbb9ececd3f334cecc6330918dc9c93540b925;p=thirdparty%2Fkernel%2Fstable.git wifi: rtw88: debug: Fix the NULL vs IS_ERR() bug for debugfs_create_file() [ Upstream commit 74f7957c9b1b95553faaf146a2553e023a9d1720 ] Since debugfs_create_file() return ERR_PTR and never return NULL, so use IS_ERR() to check it instead of checking NULL. Fixes: e3037485c68e ("rtw88: new Realtek 802.11ac driver") Signed-off-by: Jinjie Ruan Acked-by: Ping-Ke Shih Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20230919050651.962694-1-ruanjinjie@huawei.com Signed-off-by: Sasha Levin --- diff --git a/drivers/net/wireless/realtek/rtw88/debug.c b/drivers/net/wireless/realtek/rtw88/debug.c index dfd52cff5d02f..1cc2b7b948044 100644 --- a/drivers/net/wireless/realtek/rtw88/debug.c +++ b/drivers/net/wireless/realtek/rtw88/debug.c @@ -1061,9 +1061,9 @@ static struct rtw_debugfs_priv rtw_debug_priv_dm_cap = { #define rtw_debugfs_add_core(name, mode, fopname, parent) \ do { \ rtw_debug_priv_ ##name.rtwdev = rtwdev; \ - if (!debugfs_create_file(#name, mode, \ + if (IS_ERR(debugfs_create_file(#name, mode, \ parent, &rtw_debug_priv_ ##name,\ - &file_ops_ ##fopname)) \ + &file_ops_ ##fopname))) \ pr_debug("Unable to initialize debugfs:%s\n", \ #name); \ } while (0)