sh: fix Oops in the serial SCI driver
Fix an Oops, triggering, if the DMA buffer allocation for the Rx channel in sh-sci.c fails. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
parent
bb0fe53351
commit
85b8e3ffc4
|
@ -1004,8 +1004,9 @@ static void sci_rx_dma_release(struct sci_port *s, bool enable_pio)
|
|||
s->chan_rx = NULL;
|
||||
s->cookie_rx[0] = s->cookie_rx[1] = -EINVAL;
|
||||
dma_release_channel(chan);
|
||||
dma_free_coherent(port->dev, s->buf_len_rx * 2,
|
||||
sg_virt(&s->sg_rx[0]), sg_dma_address(&s->sg_rx[0]));
|
||||
if (sg_dma_address(&s->sg_rx[0]))
|
||||
dma_free_coherent(port->dev, s->buf_len_rx * 2,
|
||||
sg_virt(&s->sg_rx[0]), sg_dma_address(&s->sg_rx[0]));
|
||||
if (enable_pio)
|
||||
sci_start_rx(port);
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue