diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-02-02 23:22:20 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-02-02 23:22:20 -0300 |
commit | 5c545e1fb127a4b11ddc5f1a5ed066b853dd1a1a (patch) | |
tree | d4cd913bc79d37d32756a9bffbeedabf93e32579 /sound/core/pcm_compat.c | |
parent | b4b7ff4b08e691656c9d77c758fc355833128ac0 (diff) |
Linux-libre 4.4.1-gnupck-4.4.1-gnu
Diffstat (limited to 'sound/core/pcm_compat.c')
-rw-r--r-- | sound/core/pcm_compat.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/sound/core/pcm_compat.c b/sound/core/pcm_compat.c index b48b43444..9630e9f72 100644 --- a/sound/core/pcm_compat.c +++ b/sound/core/pcm_compat.c @@ -255,10 +255,15 @@ static int snd_pcm_ioctl_hw_params_compat(struct snd_pcm_substream *substream, if (! (runtime = substream->runtime)) return -ENOTTY; - /* only fifo_size is different, so just copy all */ - data = memdup_user(data32, sizeof(*data32)); - if (IS_ERR(data)) - return PTR_ERR(data); + data = kmalloc(sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + /* only fifo_size (RO from userspace) is different, so just copy all */ + if (copy_from_user(data, data32, sizeof(*data32))) { + err = -EFAULT; + goto error; + } if (refine) err = snd_pcm_hw_refine(substream, data); |