mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 17:30:02 +00:00
serial: sh-sci: Fix length of scatterlist
This patch fixes an issue that the "length" of scatterlist should be
set using sg_dma_len(). Otherwise, a dmaengine driver cannot work
correctly if CONFIG_NEED_SG_DMA_LENGTH=y.
Fixes: 7b39d90184
(serial: sh-sci: Fix NULL pointer dereference if HIGHMEM is enabled)
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
ac8f3bf883
commit
d09959e752
1 changed files with 1 additions and 1 deletions
|
@ -1437,7 +1437,7 @@ static void sci_request_dma(struct uart_port *port)
|
|||
sg_init_table(sg, 1);
|
||||
s->rx_buf[i] = buf;
|
||||
sg_dma_address(sg) = dma;
|
||||
sg->length = s->buf_len_rx;
|
||||
sg_dma_len(sg) = s->buf_len_rx;
|
||||
|
||||
buf += s->buf_len_rx;
|
||||
dma += s->buf_len_rx;
|
||||
|
|
Loading…
Reference in a new issue