NFC: Move checking valid gb_len value to nfc_llcp_set_remote_gb

This checking is common for all caller, so move the checking to one place. Signed-off-by: Axel Lin <[email protected]> Signed-off-by: Samuel Ortiz <[email protected]>
niw · Mar 14, 2014 · 3143a4c · 3143a4c
1 parent 365a721
commit 3143a4c
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Showing 2 changed files with 5 additions and 6 deletions.
diff --git a/net/nfc/core.c b/net/nfc/core.c
@@ -652,9 +652,6 @@ int nfc_set_remote_general_bytes(struct nfc_dev *dev, u8 *gb, u8 gb_len)
 {
 	pr_debug("dev_name=%s gb_len=%d\n", dev_name(&dev->dev), gb_len);
 
-	if (gb_len > NFC_MAX_GT_LEN)
-		return -EINVAL;
-
 	return nfc_llcp_set_remote_gb(dev, gb, gb_len);
 }
 EXPORT_SYMBOL(nfc_set_remote_general_bytes);

diff --git a/net/nfc/llcp_core.c b/net/nfc/llcp_core.c
@@ -609,14 +609,16 @@ u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *general_bytes_len)
 
 int nfc_llcp_set_remote_gb(struct nfc_dev *dev, u8 *gb, u8 gb_len)
 {
-	struct nfc_llcp_local *local = nfc_llcp_find_local(dev);
+	struct nfc_llcp_local *local;
+
+	if (gb_len < 3 || gb_len > NFC_MAX_GT_LEN)
+		return -EINVAL;
 
+	local = nfc_llcp_find_local(dev);
 	if (local == NULL) {
 		pr_err("No LLCP device\n");
 		return -ENODEV;
 	}
-	if (gb_len < 3)
-		return -EINVAL;
 
 	memset(local->remote_gb, 0, NFC_MAX_GT_LEN);
 	memcpy(local->remote_gb, gb, gb_len);