diff options
| author | Fugang Duan <fugang.duan@nxp.com> | 2019-07-17 08:19:28 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-09-04 13:43:45 +0300 |
| commit | ca8d92f6d3ddc24140554c24dcbe0a43759f37d7 (patch) | |
| tree | cff5b144d7f59f16b6e7b57c40d52e0ac87b49d6 /drivers/tty/serial/fsl_lpuart.c | |
| parent | d8a0e92e1c1e6c665ca044dcf900b7b4243d4a0c (diff) | |
tty: serial: fsl_lpuart: use kzalloc() instead of kmalloc()
Use kzalloc() instead of kmalloc() to get clean rx buffer
that is useful for DMA mode debug to check the data moving
validity.
Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Link: https://lore.kernel.org/r/20190717051930.15514-4-fugang.duan@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/fsl_lpuart.c')
| -rw-r--r-- | drivers/tty/serial/fsl_lpuart.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index 7bc304798f10..746681be3760 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -1097,7 +1097,7 @@ static inline int lpuart_start_rx_dma(struct lpuart_port *sport) if (sport->rx_dma_rng_buf_len < 16) sport->rx_dma_rng_buf_len = 16; - ring->buf = kmalloc(sport->rx_dma_rng_buf_len, GFP_ATOMIC); + ring->buf = kzalloc(sport->rx_dma_rng_buf_len, GFP_ATOMIC); if (!ring->buf) return -ENOMEM; |