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msm: mhi_dev: Fail start command if fails to allocate reqs

Browse source 
Fail the start command if we fails to allocate buffer for event
requests.

Change-Id: I05e9acb093f53f1675a4f711182730ab420e0e5a
Signed-off-by: Veerabhadrarao Badiganti <quic_vbadigan@quicinc.com>
This commit is contained in:
Veerabhadrarao Badiganti 2021-11-18 21:18:30 +05:30
commit 0ec602298e
1 changed files with 24 additions and 14 deletions
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38
drivers/platform/msm/mhi_dev/mhi.c
View file

@ -1940,12 +1940,7 @@ static int mhi_dev_process_cmd_ring(struct mhi_dev *mhi,
mhi_log(MHI_MSG_VERBOSE,
"Failed to enable chdb for ch %d\n",
ch_id);
rc = mhi_dev_send_cmd_comp_event(mhi,
MHI_CMD_COMPL_CODE_UNDEFINED);
if (rc)
mhi_log(MHI_MSG_VERBOSE,
"Error with compl event\n");
return rc;
goto send_undef_completion_event;
}
}
@ -1959,12 +1954,7 @@ static int mhi_dev_process_cmd_ring(struct mhi_dev *mhi,
if (rc) {
mhi_log(MHI_MSG_ERROR,
"start ring failed for ch %d\n", ch_id);
rc = mhi_dev_send_cmd_comp_event(mhi,
MHI_CMD_COMPL_CODE_UNDEFINED);
if (rc)
mhi_log(MHI_MSG_ERROR,
"Error with compl event\n");
return rc;
goto send_undef_completion_event;
}
mhi->ring[mhi->ch_ring_start + ch_id].state =
@ -1990,13 +1980,19 @@ static int mhi_dev_process_cmd_ring(struct mhi_dev *mhi,
mhi_log(MHI_MSG_ERROR,
"error starting event ring %d\n",
mhi->ch_ctx_cache[ch_id].err_indx);
return rc;
goto send_undef_completion_event;
}
}
mutex_lock(&mhi->ch[ch_id].ch_lock);
mhi_dev_alloc_evt_buf_evt_req(mhi, &mhi->ch[ch_id],
rc = mhi_dev_alloc_evt_buf_evt_req(mhi, &mhi->ch[ch_id],
evt_ring);
mutex_unlock(&mhi->ch[ch_id].ch_lock);
if (rc) {
mhi_log(MHI_MSG_ERROR,
"Failed to alloc ereqs for er %d\n",
mhi->ch_ctx_cache[ch_id].err_indx);
goto send_undef_completion_event;
}
}
if (MHI_USE_DMA(mhi))
@ -2022,6 +2018,20 @@ send_start_completion_event:
mhi_dev_trigger_cb(ch_id);
mhi_uci_chan_state_notify(mhi, ch_id, MHI_STATE_CONNECTED);
break;
send_undef_completion_event:
mhi->ch_ctx_cache[ch_id].ch_state = MHI_DEV_CH_STATE_DISABLED;
mhi->ch[ch_id].state = MHI_DEV_CH_UNINT;
rc = mhi_dev_send_cmd_comp_event(mhi,
MHI_CMD_COMPL_CODE_UNDEFINED);
if (rc)
mhi_log(MHI_MSG_VERBOSE, "Error with compl event\n");
mhi_dev_mmio_disable_chdb_a7(mhi, ch_id);
return rc;
case MHI_DEV_RING_EL_STOP:
if (ch_id >= HW_CHANNEL_BASE) {
rc = mhi_hwc_chcmd(mhi, ch_id, el->generic.type);