evie/android_kernel_oneplus_msm8998
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diag: Do not wait for the intent availability indefinetly

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While sending data to WDSP do not wait for the intent to be available
for ever so that diag is not blocked to send data to other peripherals.

Change-Id: I5e410ebabf4e8066abedda147879444a38b8871b
Signed-off-by: Sreelakshmi Gownipalli <sgownipa@codeaurora.org>
This commit is contained in:
Sreelakshmi Gownipalli 2016-09-22 11:58:53 -07:00 • committed by Gerrit - the friendly Code Review server
parent 46692be6dd
commit 35fa3e5dce
2 changed files with 13 additions and 14 deletions
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23
drivers/char/diag/diagfwd_glink.c
View file

@ -413,19 +413,16 @@ static int diag_glink_write(void *ctxt, unsigned char *buf, int len)
return -ENODEV;
}
err = wait_event_interruptible(glink_info->wait_q,
atomic_read(&glink_info->tx_intent_ready));
if (err) {
diagfwd_write_buffer_done(glink_info->fwd_ctxt, buf);
return -ERESTARTSYS;
}
atomic_dec(&glink_info->tx_intent_ready);
err = glink_tx(glink_info->hdl, glink_info, buf, len, tx_flags);
if (!err) {
DIAG_LOG(DIAG_DEBUG_PERIPHERALS, "%s wrote to glink, len: %d\n",
glink_info->name, len);
}
if (atomic_read(&glink_info->tx_intent_ready)) {
atomic_dec(&glink_info->tx_intent_ready);
err = glink_tx(glink_info->hdl, glink_info, buf, len, tx_flags);
if (!err) {
DIAG_LOG(DIAG_DEBUG_PERIPHERALS,
"%s wrote to glink, len: %d\n",
glink_info->name, len);
}
} else
err = -ENOMEM;
return err;

4
drivers/char/diag/diagfwd_peripheral.c
View file

@ -751,7 +751,9 @@ int diagfwd_write(uint8_t peripheral, uint8_t type, void *buf, int len)
if (!err)
fwd_info->write_bytes += len;
else
if (fwd_info->transport == TRANSPORT_GLINK)
diagfwd_write_buffer_done(fwd_info, buf_ptr);
return err;
}