Return-path: Received: from mail-ig0-f172.google.com ([209.85.213.172]:37596 "EHLO mail-ig0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755028AbbLAFlR (ORCPT ); Tue, 1 Dec 2015 00:41:17 -0500 From: Brent Taylor To: kvalo@qca.qualcomm.com Cc: linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, ath6kl@lists.infradead.org, Brent Taylor Subject: [PATCH] ath6kl: Use vmalloc to allocate ar->fw for api1 method Date: Mon, 30 Nov 2015 23:41:10 -0600 Message-Id: <1448948470-31111-1-git-send-email-motobud@gmail.com> (sfid-20151201_064137_590624_DEC33D9F) Sender: linux-wireless-owner@vger.kernel.org List-ID: Since commit 8437754c83351d6213c1a47ff029c1126d6042a7, ar->fw is expected to be pointing to memory allocated by vmalloc. If the api1 method (via ath6kl_fetch_fw_api1) is used to allocate memory for ar->fw, then kmemdup is used. This patch checks if the firmware being loaded is the 'fw' image, then use vmalloc, otherwise use kmalloc. Signed-off-by: Brent Taylor --- drivers/net/wireless/ath/ath6kl/init.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath6kl/init.c b/drivers/net/wireless/ath/ath6kl/init.c index 6ae0734..4f2b124d 100644 --- a/drivers/net/wireless/ath/ath6kl/init.c +++ b/drivers/net/wireless/ath/ath6kl/init.c @@ -673,10 +673,15 @@ static int ath6kl_get_fw(struct ath6kl *ar, const char *filename, return ret; *fw_len = fw_entry->size; - *fw = kmemdup(fw_entry->data, fw_entry->size, GFP_KERNEL); + if (&ar->fw == fw) + *fw = vmalloc(fw_entry->size); + else + *fw = kmalloc(fw_entry->size, GFP_KERNEL); if (*fw == NULL) ret = -ENOMEM; + else + memcpy(*fw, fw_entry->data, fw_entry->size); release_firmware(fw_entry); -- 2.6.3