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path: root/drivers/net/can/mcp251x.c
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Diffstat (limited to 'drivers/net/can/mcp251x.c')
-rw-r--r--drivers/net/can/mcp251x.c13
1 files changed, 3 insertions, 10 deletions
diff --git a/drivers/net/can/mcp251x.c b/drivers/net/can/mcp251x.c
index 78b1b69b2921..9c5a1537939c 100644
--- a/drivers/net/can/mcp251x.c
+++ b/drivers/net/can/mcp251x.c
@@ -403,9 +403,8 @@ static void mcp251x_hw_rx_frame(struct spi_device *spi, u8 *buf,
for (i = 1; i < RXBDAT_OFF; i++)
buf[i] = mcp251x_read_reg(spi, RXBCTRL(buf_idx) + i);
- len = buf[RXBDLC_OFF] & RXBDLC_LEN_MASK;
- if (len > 8)
- len = 8;
+
+ len = get_can_dlc(buf[RXBDLC_OFF] & RXBDLC_LEN_MASK);
for (; i < (RXBDAT_OFF + len); i++)
buf[i] = mcp251x_read_reg(spi, RXBCTRL(buf_idx) + i);
} else {
@@ -455,13 +454,7 @@ static void mcp251x_hw_rx(struct spi_device *spi, int buf_idx)
(buf[RXBSIDL_OFF] >> RXBSIDL_SHIFT);
}
/* Data length */
- frame->can_dlc = buf[RXBDLC_OFF] & RXBDLC_LEN_MASK;
- if (frame->can_dlc > 8) {
- dev_warn(&spi->dev, "invalid frame recevied\n");
- priv->net->stats.rx_errors++;
- dev_kfree_skb(skb);
- return;
- }
+ frame->can_dlc = get_can_dlc(buf[RXBDLC_OFF] & RXBDLC_LEN_MASK);
memcpy(frame->data, buf + RXBDAT_OFF, frame->can_dlc);
priv->net->stats.rx_packets++;