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[SCSI] sg: fix /proc/scsi/sg/devices when no SCSI devices 

The patch "[SCSI] sg: use idr to replace static arrays" in 2.6.24-rc1
causes a bogus line to appear in /proc/scsi/sg/devices containing
"-1 -1 -1 -1 -1 -1 -1 -1 -1" when there are no SCSI devices in the
system.  In 2.6.23, /proc/scsi/sg/devices is empty when there are no
SCSI devices in the system.  A similar problem exists with
/proc/scsi/sg/device_strs.  The following patch restores the behavior
of 2.6.23.

Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Acked-by: Douglas Gilbert <dougg@torque.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Tony Battersby 2008-01-22 15:25:49 -05:00 committed by James Bottomley
parent 90c18f3c28
commit 53474c042c
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/sg.c
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@ -2529,7 +2529,7 @@ sg_idr_max_id(int id, void *p, void *data)
static int
sg_last_dev(void)
{
int k = 0;
int k = -1;
unsigned long iflags;
read_lock_irqsave(&sg_index_lock, iflags);