dmaengine: PL08x: get rid of pl08x_prep_channel_resources
This function is now unnecessary; we can move its internals inline
instead.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c
index c42c7ef..9297240 100644
--- a/drivers/dma/amba-pl08x.c
+++ b/drivers/dma/amba-pl08x.c
@@ -1352,25 +1352,6 @@
spin_unlock_irqrestore(&plchan->vc.lock, flags);
}
-static int pl08x_prep_channel_resources(struct pl08x_dma_chan *plchan,
- struct pl08x_txd *txd)
-{
- struct pl08x_driver_data *pl08x = plchan->host;
- int num_llis;
-
- num_llis = pl08x_fill_llis_for_desc(pl08x, txd);
- if (!num_llis) {
- unsigned long flags;
-
- spin_lock_irqsave(&plchan->vc.lock, flags);
- pl08x_free_txd(pl08x, txd);
- spin_unlock_irqrestore(&plchan->vc.lock, flags);
-
- return -EINVAL;
- }
- return 0;
-}
-
static struct pl08x_txd *pl08x_get_txd(struct pl08x_dma_chan *plchan)
{
struct pl08x_txd *txd = kzalloc(sizeof(*txd), GFP_NOWAIT);
@@ -1430,9 +1411,11 @@
txd->cctl |= pl08x_select_bus(pl08x->mem_buses,
pl08x->mem_buses);
- ret = pl08x_prep_channel_resources(plchan, txd);
- if (ret)
+ ret = pl08x_fill_llis_for_desc(plchan->host, txd);
+ if (!ret) {
+ pl08x_free_txd(pl08x, txd);
return NULL;
+ }
return vchan_tx_prep(&plchan->vc, &txd->vd, flags);
}
@@ -1546,9 +1529,12 @@
}
}
- ret = pl08x_prep_channel_resources(plchan, txd);
- if (ret)
+ ret = pl08x_fill_llis_for_desc(plchan->host, txd);
+ if (!ret) {
+ pl08x_release_mux(plchan);
+ pl08x_free_txd(pl08x, txd);
return NULL;
+ }
return vchan_tx_prep(&plchan->vc, &txd->vd, flags);
}