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@@ -144,7 +144,7 @@ static int snd_pcm_ioctl_sw_params_compat(snd_pcm_substream_t *substream,
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err = snd_pcm_sw_params(substream, ¶ms);
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if (err < 0)
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return err;
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- if (put_user(boundary, &src->boundary))
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+ if (boundary && put_user(boundary, &src->boundary))
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return -EFAULT;
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return err;
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}
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@@ -252,8 +252,11 @@ static int snd_pcm_ioctl_hw_params_compat(snd_pcm_substream_t *substream,
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goto error;
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}
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- if (! refine)
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- runtime->boundary = recalculate_boundary(runtime);
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+ if (! refine) {
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+ unsigned int new_boundary = recalculate_boundary(runtime);
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+ if (new_boundary)
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+ runtime->boundary = new_boundary;
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+ }
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error:
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kfree(data);
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return err;
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@@ -408,6 +411,8 @@ static int snd_pcm_ioctl_sync_ptr_compat(snd_pcm_substream_t *substream,
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status = runtime->status;
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control = runtime->control;
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boundary = recalculate_boundary(runtime);
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+ if (! boundary)
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+ boundary = 0x7fffffff;
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snd_pcm_stream_lock_irq(substream);
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/* FIXME: we should consider the boundary for the sync from app */
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if (!(sflags & SNDRV_PCM_SYNC_PTR_APPL))
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