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authorAlan Stern <stern@rowland.harvard.edu>2010-09-07 11:27:52 -0400
committerJames Bottomley <James.Bottomley@suse.de>2010-09-07 10:31:54 -0500
commit7e443312403ad1ff40ef3177590e96d1fe747c79 (patch)
tree50a5428e88d62c5d02e045614fc31c05194d1be4 /drivers/scsi
parent0fb576d8251c10f498ed4c6938aeeed8d0c93cfe (diff)
[SCSI] sd: fix medium-removal bug
Commit 409f3499a2cfcd1e9c2857c53af7fcce069f027f (scsi/sd: remove big kernel lock) introduced a bug in the sd_release routine. Medium removal should be allowed when the number of open file references drops to 0, not when it becomes non-zero. This patch (as1414) adjusts the test to fix the bug. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/sd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index cd71f46a3d4..ffa0689ee84 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -870,7 +870,7 @@ static int sd_release(struct gendisk *disk, fmode_t mode)
SCSI_LOG_HLQUEUE(3, sd_printk(KERN_INFO, sdkp, "sd_release\n"));
- if (atomic_dec_return(&sdkp->openers) && sdev->removable) {
+ if (atomic_dec_return(&sdkp->openers) == 0 && sdev->removable) {
if (scsi_block_when_processing_errors(sdev))
scsi_set_medium_removal(sdev, SCSI_REMOVAL_ALLOW);
}