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path: root/drivers/scsi/sd.c
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Diffstat (limited to 'drivers/scsi/sd.c')
-rw-r--r--drivers/scsi/sd.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 18343a6acd8e..212f6bcfd457 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -736,6 +736,7 @@ static int sd_media_changed(struct gendisk *disk)
736{ 736{
737 struct scsi_disk *sdkp = scsi_disk(disk); 737 struct scsi_disk *sdkp = scsi_disk(disk);
738 struct scsi_device *sdp = sdkp->device; 738 struct scsi_device *sdp = sdkp->device;
739 struct scsi_sense_hdr *sshdr = NULL;
739 int retval; 740 int retval;
740 741
741 SCSI_LOG_HLQUEUE(3, sd_printk(KERN_INFO, sdkp, "sd_media_changed\n")); 742 SCSI_LOG_HLQUEUE(3, sd_printk(KERN_INFO, sdkp, "sd_media_changed\n"));
@@ -766,8 +767,11 @@ static int sd_media_changed(struct gendisk *disk)
766 */ 767 */
767 retval = -ENODEV; 768 retval = -ENODEV;
768 769
769 if (scsi_block_when_processing_errors(sdp)) 770 if (scsi_block_when_processing_errors(sdp)) {
770 retval = scsi_test_unit_ready(sdp, SD_TIMEOUT, SD_MAX_RETRIES); 771 sshdr = kzalloc(sizeof(*sshdr), GFP_KERNEL);
772 retval = scsi_test_unit_ready(sdp, SD_TIMEOUT, SD_MAX_RETRIES,
773 sshdr);
774 }
771 775
772 /* 776 /*
773 * Unable to test, unit probably not ready. This usually 777 * Unable to test, unit probably not ready. This usually
@@ -775,7 +779,9 @@ static int sd_media_changed(struct gendisk *disk)
775 * and we will figure it out later once the drive is 779 * and we will figure it out later once the drive is
776 * available again. 780 * available again.
777 */ 781 */
778 if (retval) { 782 if (retval || (scsi_sense_valid(sshdr) &&
783 /* 0x3a is medium not present */
784 sshdr->asc == 0x3a)) {
779 set_media_not_present(sdkp); 785 set_media_not_present(sdkp);
780 retval = 1; 786 retval = 1;
781 goto out; 787 goto out;
@@ -794,6 +800,7 @@ out:
794 if (retval != sdkp->previous_state) 800 if (retval != sdkp->previous_state)
795 sdev_evt_send_simple(sdp, SDEV_EVT_MEDIA_CHANGE, GFP_KERNEL); 801 sdev_evt_send_simple(sdp, SDEV_EVT_MEDIA_CHANGE, GFP_KERNEL);
796 sdkp->previous_state = retval; 802 sdkp->previous_state = retval;
803 kfree(sshdr);
797 return retval; 804 return retval;
798} 805}
799 806