evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

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

Browse source 
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
Show stats Download patch file Download diff file Expand all files Collapse all files

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; u32 chan;
struct mhi_device_ctxt *ctxt; struct mhi_device_ctxt *ctxt;
int bb_ring, ch_ring;
if (!client_handle || MHI_HANDLE_MAGIC != client_handle->magic || if (!client_handle || MHI_HANDLE_MAGIC != client_handle->magic ||
!client_handle->mhi_dev_ctxt) !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; ctxt = client_handle->mhi_dev_ctxt;
chan = client_handle->chan_info.chan_nr; 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); EXPORT_SYMBOL(mhi_get_free_desc);