From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ed1-f42.google.com (mail-ed1-f42.google.com [209.85.208.42]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A729E29CA for ; Mon, 8 Nov 2021 10:55:49 +0000 (UTC) Received: by mail-ed1-f42.google.com with SMTP id z21so15257960edb.5 for ; Mon, 08 Nov 2021 02:55:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=KNfZ6uMilvryu7GOeBols/pZXZY1MA2eNPOG6Jq/4aE=; b=U6/HA5p3cWuErRNeCPFky87n13xC42GPv4nrDR0gbY2gmrn+ebDtFFI2KFSqRVA8w9 sOvpJUlzvyFaqyAHLWTG0d1jO1ESIuUOsmI7Yr0xTa/igyFZyMRi9xzpp6tKBaln5hr1 +ieS+RiQVx5e4zERv7D2tkbG3bW16i7yinhi/tTZMJmgRNfQmLB4grolMp3/mpgOP59e +RL9WS/kJcBUrdGGeN2Fglgh26MUnGI2D56JPKdsxflxQRLjV1Nkcm2QTAUgEXoy4JiT T/LLw+EX2OxCQ7jWfmz6P1Itg4cI+DvI5KmtJiWYcxncPb0bAI6aLGma18pyYJ6Kg3Wi 5omA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=KNfZ6uMilvryu7GOeBols/pZXZY1MA2eNPOG6Jq/4aE=; b=LrLuPE9ZFztoseekgBi7qBbPpzUUQGQKwev0S17GkOd2ha39ioFbaexpZdgOdvvJnE FMrAzaXqW8SJ7/R0Uz9BGGQBqa+MRuJaUdKWWISn3RZAWRyyyaOX7jI+D1r428Z5q6qH Pdh1PrWRqLvogFU1ACIy9jc6CnSZPU2l4cUD2FSGm2O39ZW8gMKpTjx1qZtS29V6NiTu IRH0VLkD29HZpG7ZCemE35SdTb6k9D2j65ys4HhieIbPKlRdZsUitzTk/FylNM0cCHpL bJtfkFffROGFAPZtq6S6MdCuPF6RQ3tS5OTD17TISsrQHmVh9JCJcwsCX1XYIuuJcQEv L3Cw== X-Gm-Message-State: AOAM5337oaNjcgpw7KOPV/purhZ70kpZaB77vSQliYDjIQWG0BNeNnrT u9QqIOu+tRjynCU5OyrzoFQ= X-Google-Smtp-Source: ABdhPJw45JqAdv9ir6/uvLoZyLi0420BmFuUQmuzlpYjj5tfePpXzhhGGK88crc5ORPybLmIPd0E1Q== X-Received: by 2002:a05:6402:10cd:: with SMTP id p13mr106801534edu.111.1636368948149; Mon, 08 Nov 2021 02:55:48 -0800 (PST) Received: from localhost.localdomain ([2a02:8108:96c0:3b88::38bf]) by smtp.gmail.com with ESMTPSA id b19sm7747051ejc.107.2021.11.08.02.55.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 08 Nov 2021 02:55:47 -0800 (PST) From: Michael Straube To: gregkh@linuxfoundation.org Cc: Larry.Finger@lwfinger.net, phil@philpotter.co.uk, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org, Michael Straube Subject: [PATCH] staging: r8188eu: use GFP_ATOMIC under spinlock Date: Mon, 8 Nov 2021 11:55:37 +0100 Message-Id: <20211108105537.31655-1-straube.linux@gmail.com> X-Mailer: git-send-email 2.33.1 Precedence: bulk X-Mailing-List: linux-staging@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit In function rtw_report_sec_ie() kzalloc() is called under a spinlock, so the allocation have to be atomic. Call tree: -> rtw_select_and_join_from_scanned_queue() <- takes a spinlock -> rtw_joinbss_cmd() -> rtw_restruct_sec_ie() -> rtw_report_sec_ie() Fixes: 2b42bd58b321 ("staging: r8188eu: introduce new os_dep dir for RTL8188eu driver") Signed-off-by: Michael Straube --- drivers/staging/r8188eu/os_dep/mlme_linux.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/r8188eu/os_dep/mlme_linux.c b/drivers/staging/r8188eu/os_dep/mlme_linux.c index a9b6ffdbf31a..f7ce724ebf87 100644 --- a/drivers/staging/r8188eu/os_dep/mlme_linux.c +++ b/drivers/staging/r8188eu/os_dep/mlme_linux.c @@ -112,7 +112,7 @@ void rtw_report_sec_ie(struct adapter *adapter, u8 authmode, u8 *sec_ie) buff = NULL; if (authmode == _WPA_IE_ID_) { - buff = kzalloc(IW_CUSTOM_MAX, GFP_KERNEL); + buff = kzalloc(IW_CUSTOM_MAX, GFP_ATOMIC); if (!buff) return; p = buff; -- 2.33.1