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[v2,07/17] staging: wfx: fix endianness of hif_req_read_mib fields

Message ID 20200512150414.267198-8-Jerome.Pouiller@silabs.com
State New
Headers show
Series [v2,01/17] staging: wfx: fix use of cpu_to_le32 instead of le32_to_cpu | expand

Commit Message

Jérôme Pouiller May 12, 2020, 3:04 p.m. UTC 
From: Jérôme Pouiller <jerome.pouiller@silabs.com>

The structs hif_{req,cnf}_read_mib contain only little endian values.
Thus, it is necessary to fix byte ordering before to use them.
Especially, sparse detected wrong accesses to fields mib_id and length.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
---
 drivers/staging/wfx/hif_tx.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)
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Patch

diff --git a/drivers/staging/wfx/hif_tx.c b/drivers/staging/wfx/hif_tx.c
index 58013c019192..490a9de54faf 100644
--- a/drivers/staging/wfx/hif_tx.c
+++ b/drivers/staging/wfx/hif_tx.c
@@ -189,17 +189,17 @@  int hif_read_mib(struct wfx_dev *wdev, int vif_id, u16 mib_id,
 	wfx_fill_header(hif, vif_id, HIF_REQ_ID_READ_MIB, sizeof(*body));
 	ret = wfx_cmd_send(wdev, hif, reply, buf_len, false);
 
-	if (!ret && mib_id != reply->mib_id) {
+	if (!ret && mib_id != le16_to_cpu(reply->mib_id)) {
 		dev_warn(wdev->dev,
 			 "%s: confirmation mismatch request\n", __func__);
 		ret = -EIO;
 	}
 	if (ret == -ENOMEM)
-		dev_err(wdev->dev,
-			"buffer is too small to receive %s (%zu < %d)\n",
-			get_mib_name(mib_id), val_len, reply->length);
+		dev_err(wdev->dev, "buffer is too small to receive %s (%zu < %d)\n",
+			get_mib_name(mib_id), val_len,
+			le16_to_cpu(reply->length));
 	if (!ret)
-		memcpy(val, &reply->mib_data, reply->length);
+		memcpy(val, &reply->mib_data, le16_to_cpu(reply->length));
 	else
 		memset(val, 0xFF, val_len);
 	kfree(hif);