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authorSubhash Jadavani <subhashj@codeaurora.org>2014-09-25 14:32:20 +0200
committerChristoph Hellwig <hch@lst.de>2014-10-01 13:11:08 +0200
commit693ad5ba135d40b1379e40e928123681e2aa2c50 (patch)
tree6a656a66b3f8786bddaf3c600a7820128a875285 /drivers/scsi/scsi_scan.c
parentscsi: fix the type for well known LUs (diff)
downloadlinux-693ad5ba135d40b1379e40e928123681e2aa2c50.tar.xz
linux-693ad5ba135d40b1379e40e928123681e2aa2c50.zip
scsi: don't add scsi_device if its already visible
If LLD has added scsi device (by calling scsi_add_device) before scheduling async scsi_scan_host then scsi_finish_async_scan() will end up calling scsi_sysfs_add_sdev for scsi device which was already added by LLD. This patch fixes this issue by skipping the call to scsi_sysfs_add_sdev() if it's already visible to rest of the kernel. Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org> Signed-off-by: Dolev Raviv <draviv@codeaurora.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/scsi/scsi_scan.c')
-rw-r--r--drivers/scsi/scsi_scan.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index dde0c542e0b1..ba3f1e8d0d57 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -1756,6 +1756,9 @@ static void scsi_sysfs_add_devices(struct Scsi_Host *shost)
/* target removed before the device could be added */
if (sdev->sdev_state == SDEV_DEL)
continue;
+ /* If device is already visible, skip adding it to sysfs */
+ if (sdev->is_visible)
+ continue;
if (!scsi_host_scan_allowed(shost) ||
scsi_sysfs_add_sdev(sdev) != 0)
__scsi_remove_device(sdev);