[S390] zcrypt: Fix error return codes.

Return EINVAL instead of EFAULT for invalid input parameter.

Signed-off-by: Holger Dengler <hd@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/drivers/s390/crypto/zcrypt_pcixcc.c b/drivers/s390/crypto/zcrypt_pcixcc.c
index 646fb8f..077b7d1 100644 (file)
--- a/drivers/s390/crypto/zcrypt_pcixcc.c
+++ b/drivers/s390/crypto/zcrypt_pcixcc.c
@@ -260,7 +260,7 @@ static int ICACRT_msg_to_type6CRT_msgX(struct zcrypt_device *zdev,
  * @ap_msg: pointer to AP message
  * @xcRB: pointer to user input data
  *
- * Returns 0 on success or -EFAULT.
+ * Returns 0 on success or -EFAULT, -EINVAL.
  */
 struct type86_fmt2_msg {
        struct type86_hdr hdr;
@@ -290,12 +290,12 @@ static int XCRB_msg_to_type6CPRB_msgX(struct zcrypt_device *zdev,
                CEIL4(xcRB->request_control_blk_length) +
                xcRB->request_data_length;
        if (ap_msg->length > PCIXCC_MAX_XCRB_MESSAGE_SIZE)
-               return -EFAULT;
+               return -EINVAL;
        replylen = sizeof(struct type86_fmt2_msg) +
                CEIL4(xcRB->reply_control_blk_length) +
                xcRB->reply_data_length;
        if (replylen > PCIXCC_MAX_XCRB_MESSAGE_SIZE)
-               return -EFAULT;
+               return -EINVAL;
 
        /* prepare type6 header */
        msg->hdr = static_type6_hdrX;
@@ -314,7 +314,7 @@ static int XCRB_msg_to_type6CPRB_msgX(struct zcrypt_device *zdev,
                return -EFAULT;
        if (msg->cprbx.cprb_len + sizeof(msg->hdr.function_code) >
            xcRB->request_control_blk_length)
-               return -EFAULT;
+               return -EINVAL;
        function_code = ((unsigned char *)&msg->cprbx) + msg->cprbx.cprb_len;
        memcpy(msg->hdr.function_code, function_code, sizeof(msg->hdr.function_code));