Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm

[linux-2.6-omap-h63xx.git] / drivers / s390 / char / tape_3590.c

diff --git a/drivers/s390/char/tape_3590.c b/drivers/s390/char/tape_3590.c
index 50f5edab83d7fcc79672ceff0c75cc701fd4b7a0..7e2b2ab492641a53aea103845ffe9f1b8c1a6ad8 100644 (file)
--- a/drivers/s390/char/tape_3590.c
+++ b/drivers/s390/char/tape_3590.c
@@ -788,6 +788,7 @@ tape_3590_done(struct tape_device *device, struct tape_request *request)
        case TO_SIZE:
        case TO_KEKL_SET:
        case TO_KEKL_QUERY:
+       case TO_RDC:
                break;
        }
        return TAPE_IO_SUCCESS;
@@ -1549,6 +1550,26 @@ tape_3590_irq(struct tape_device *device, struct tape_request *request,
        return TAPE_IO_STOP;
 }
 
+
+static int tape_3590_read_dev_chars(struct tape_device *device,
+                                   struct tape_3590_rdc_data *rdc_data)
+{
+       int rc;
+       struct tape_request *request;
+
+       request = tape_alloc_request(1, sizeof(*rdc_data));
+       if (IS_ERR(request))
+               return PTR_ERR(request);
+       request->op = TO_RDC;
+       tape_ccw_end(request->cpaddr, CCW_CMD_RDC, sizeof(*rdc_data),
+                    request->cpdata);
+       rc = tape_do_io(device, request);
+       if (rc == 0)
+               memcpy(rdc_data, request->cpdata, sizeof(*rdc_data));
+       tape_free_request(request);
+       return rc;
+}
+
 /*
  * Setup device function
  */
@@ -1557,7 +1578,7 @@ tape_3590_setup_device(struct tape_device *device)
 {
        int rc;
        struct tape_3590_disc_data *data;
-       char *rdc_data;
+       struct tape_3590_rdc_data *rdc_data;
 
        DBF_EVENT(6, "3590 device setup\n");
        data = kzalloc(sizeof(struct tape_3590_disc_data), GFP_KERNEL | GFP_DMA);
@@ -1566,12 +1587,12 @@ tape_3590_setup_device(struct tape_device *device)
        data->read_back_op = READ_PREVIOUS;
        device->discdata = data;
 
-       rdc_data = kmalloc(64, GFP_KERNEL | GFP_DMA);
+       rdc_data = kmalloc(sizeof(*rdc_data), GFP_KERNEL | GFP_DMA);
        if (!rdc_data) {
                rc = -ENOMEM;
                goto fail_kmalloc;
        }
-       rc = read_dev_chars(device->cdev, (void**)&rdc_data, 64);
+       rc = tape_3590_read_dev_chars(device, rdc_data);
        if (rc) {
                DBF_LH(3, "Read device characteristics failed!\n");
                goto fail_kmalloc;
@@ -1579,7 +1600,7 @@ tape_3590_setup_device(struct tape_device *device)
        rc = tape_std_assign(device);
        if (rc)
                goto fail_rdc_data;
-       if (rdc_data[31] == 0x13) {
+       if (rdc_data->data[31] == 0x13) {
                PRINT_INFO("Device has crypto support\n");
                data->crypt_info.capability |= TAPE390_CRYPT_SUPPORTED_MASK;
                tape_3592_disable_crypt(device);