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Merge "asoc: Update copy_to_user to requested buffer size"

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qctecmdr 2021-01-25 09:25:40 -08:00 • committed by Gerrit - the friendly Code Review server
commit a3ea69b6e4
1 changed files with 5 additions and 2 deletions
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7
asoc/msm-pcm-q6-v2.c
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@ -1,5 +1,5 @@
// SPDX-License-Identifier: GPL-2.0-only
/* Copyright (c) 2012-2020, The Linux Foundation. All rights reserved.
/* Copyright (c) 2012-2021, The Linux Foundation. All rights reserved.
*/
@ -1017,7 +1017,10 @@ static int msm_pcm_capture_copy(struct snd_pcm_substream *substream,
pr_debug("Offset value = %d\n", offset);
if (size == 0 || size < prtd->pcm_count) {
memset(bufptr + offset + size, 0, prtd->pcm_count - size);
size = xfer = prtd->pcm_count;
if (fbytes > prtd->pcm_count)
size = xfer = prtd->pcm_count;
else
size = xfer = fbytes;
}
if (copy_to_user(buf, bufptr+offset, xfer)) {