evie/android_kernel_oneplus_msm8998
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msm: mhi: Check bb ring and transfer ring when checking for space

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When checking for available spaces, check available spaces on
both bounce buffer ring and transfer ring and return min.

Change-Id: I9208b46c32821de3f5d9e3d828087d7bc29b9546
CRs-Fixed: 1055681
Signed-off-by: Sujeev Dias <sdias@codeaurora.org>
This commit is contained in:
Sujeev Dias 2016-08-29 18:56:30 -07:00
parent 3d25629c67
commit 0f889f7e46
1 changed files with 5 additions and 1 deletions
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6
drivers/platform/msm/mhi/mhi_ring_ops.c
View file

@ -114,6 +114,7 @@ int mhi_get_free_desc(struct mhi_client_handle *client_handle)
{
u32 chan;
struct mhi_device_ctxt *ctxt;
int bb_ring, ch_ring;
if (!client_handle || MHI_HANDLE_MAGIC != client_handle->magic ||
!client_handle->mhi_dev_ctxt)
@ -121,7 +122,10 @@ int mhi_get_free_desc(struct mhi_client_handle *client_handle)
ctxt = client_handle->mhi_dev_ctxt;
chan = client_handle->chan_info.chan_nr;
return get_nr_avail_ring_elements(&ctxt->mhi_local_chan_ctxt[chan]);
bb_ring = get_nr_avail_ring_elements(&ctxt->chan_bb_list[chan]);
ch_ring = get_nr_avail_ring_elements(&ctxt->mhi_local_chan_ctxt[chan]);
return min(bb_ring, ch_ring);
}
EXPORT_SYMBOL(mhi_get_free_desc);