[SCSI] fix removable device inability to detect disk changes

[linux-2.6-omap-h63xx.git] / drivers / scsi / scsi_lib.c

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index e5a9526d20376ab341b54618248dbdd93db3ded3..f35a0951e46903e6c62d87aa93f6a3cf479af62b 100644 (file)
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -2105,22 +2105,21 @@ scsi_test_unit_ready(struct scsi_device *sdev, int timeout, int retries,
        do {
                result = scsi_execute_req(sdev, cmd, DMA_NONE, NULL, 0, sshdr,
                                          timeout, retries);
-       } while ((driver_byte(result) & DRIVER_SENSE) &&
-                sshdr && sshdr->sense_key == UNIT_ATTENTION &&
-                --retries);
+               if (sdev->removable && scsi_sense_valid(sshdr) &&
+                   sshdr->sense_key == UNIT_ATTENTION)
+                       sdev->changed = 1;
+       } while (scsi_sense_valid(sshdr) &&
+                sshdr->sense_key == UNIT_ATTENTION && --retries);
 
        if (!sshdr)
                /* could not allocate sense buffer, so can't process it */
                return result;
 
-       if ((driver_byte(result) & DRIVER_SENSE) && sdev->removable) {
-
-               if ((scsi_sense_valid(sshdr)) &&
-                   ((sshdr->sense_key == UNIT_ATTENTION) ||
-                    (sshdr->sense_key == NOT_READY))) {
-                       sdev->changed = 1;
-                       result = 0;
-               }
+       if (sdev->removable && scsi_sense_valid(sshdr) &&
+           (sshdr->sense_key == UNIT_ATTENTION ||
+            sshdr->sense_key == NOT_READY)) {
+               sdev->changed = 1;
+               result = 0;
        }
        if (!sshdr_external)
                kfree(sshdr);