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Commit 127a8bd8 authored by Alex Yakavenka's avatar Alex Yakavenka
Browse files

can: Fix buffer calculation 



Buffer calculation was incorrect.

CRs-Fixed: 1047734
Change-Id: I043bc13d37618fcc4aa70bb43c897c381b224b52
Signed-off-by: default avatarAlex Yakavenka <ayakav@codeaurora.org>
parent d71271a8

drivers/net/can/spi/rh850.c

+4 −4
Original line number Diff line number Diff line
@@ -332,7 +332,8 @@ static int rh850_process_rx(struct rh850_can *priv_data, char *rx_buf) 
			       rx_buf, 2);

			data = priv_data->assembly_buffer;

			resp = (struct spi_miso *)data;

			length = resp->len - priv_data->assembly_buffer_size;

			length = resp->len + sizeof(*resp)

					- priv_data->assembly_buffer_size;

			if (length > 0)

				memcpy(priv_data->assembly_buffer +

				       priv_data->assembly_buffer_size,
@@ -353,7 +354,7 @@ static int rh850_process_rx(struct rh850_can *priv_data, char *rx_buf) 
		      length_processed, length_left, priv_data->xfer_length);

		length_processed += length;

		if (length_left >= sizeof(*resp) &&

		    resp->len <= length_left) {

		    resp->len + sizeof(*resp) <= length_left) {

			struct spi_miso *resp =

					(struct spi_miso *)data;

			ret = rh850_process_response(priv_data, resp,
@@ -841,8 +842,7 @@ static int rh850_do_blocking_ioctl(struct net_device *netdev, 
		len = ioctl_data->len;

		data = ioctl_data->data;

	}

	LOGDI("rh850_do_blocking_ioctl len and data %d %x\n",

	      len, (void *)data);

	LOGDI("rh850_do_blocking_ioctl len %d\n", len);

	mutex_lock(&priv_data->spi_lock);



	priv_data->wait_cmd = spi_cmd;