mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
synced 2024-12-20 21:34:24 -05:00
60 lines
2.1 KiB
Diff
60 lines
2.1 KiB
Diff
From 2bf336ed7ff29768b63fcf0d9528dd129f516643 Mon Sep 17 00:00:00 2001
|
|
From: Siena Richard <sienar@codeaurora.org>
|
|
Date: Tue, 31 Jan 2017 12:21:38 -0800
|
|
Subject: ASoC: msm: qdsp6v2: return error when copy from userspace fails
|
|
|
|
A copy_from_user is not always expected to succeed. Therefore, check
|
|
for an error before operating on the buffer post copy.
|
|
|
|
CRs-Fixed: 1116070
|
|
Change-Id: I21032719e6e85f280ca0cda875c84ac8dee8916b
|
|
Signed-off-by: Siena Richard <sienar@codeaurora.org>
|
|
---
|
|
sound/soc/msm/qdsp6v2/msm-pcm-voip-v2.c | 17 +++++++++++------
|
|
1 file changed, 11 insertions(+), 6 deletions(-)
|
|
|
|
diff --git a/sound/soc/msm/qdsp6v2/msm-pcm-voip-v2.c b/sound/soc/msm/qdsp6v2/msm-pcm-voip-v2.c
|
|
index c444a27..b2387a7 100644
|
|
--- a/sound/soc/msm/qdsp6v2/msm-pcm-voip-v2.c
|
|
+++ b/sound/soc/msm/qdsp6v2/msm-pcm-voip-v2.c
|
|
@@ -1,4 +1,4 @@
|
|
-/* Copyright (c) 2012-2016, The Linux Foundation. All rights reserved.
|
|
+/* Copyright (c) 2012-2017, The Linux Foundation. All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 and
|
|
@@ -814,20 +814,25 @@ static int msm_pcm_playback_copy(struct snd_pcm_substream *substream, int a,
|
|
if (prtd->mode == MODE_PCM) {
|
|
ret = copy_from_user(&buf_node->frame.voc_pkt,
|
|
buf, count);
|
|
+ if (ret) {
|
|
+ pr_err("%s: copy from user failed %d\n",
|
|
+ __func__, ret);
|
|
+ return -EFAULT;
|
|
+ }
|
|
buf_node->frame.pktlen = count;
|
|
} else {
|
|
ret = copy_from_user(&buf_node->frame,
|
|
buf, count);
|
|
+ if (ret) {
|
|
+ pr_err("%s: copy from user failed %d\n",
|
|
+ __func__, ret);
|
|
+ return -EFAULT;
|
|
+ }
|
|
if (buf_node->frame.pktlen >= count)
|
|
buf_node->frame.pktlen = count -
|
|
(sizeof(buf_node->frame.frm_hdr) +
|
|
sizeof(buf_node->frame.pktlen));
|
|
}
|
|
- if (ret) {
|
|
- pr_err("%s: copy from user failed %d\n",
|
|
- __func__, ret);
|
|
- return -EFAULT;
|
|
- }
|
|
spin_lock_irqsave(&prtd->dsp_lock, dsp_flags);
|
|
list_add_tail(&buf_node->list, &prtd->in_queue);
|
|
spin_unlock_irqrestore(&prtd->dsp_lock, dsp_flags);
|
|
--
|
|
cgit v1.1
|
|
|