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@xxxxxxxxxxxxxxx>
---
--- linux-2.6.24-rc8-git5/drivers/scsi/sg.c.orig 2008-01-22 15:08:46.000000000 -0500
+++ linux-2.6.24-rc8-git5/drivers/scsi/sg.c 2008-01-22 15:09:05.000000000 -0500
@@ -2521,7 +2521,7 @@ sg_idr_max_id(int id, void *p, void *dat
static int
sg_last_dev(void)
{
- int k = 0;
+ int k = -1;
unsigned long iflags;
read_lock_irqsave(&sg_index_lock, iflags);
-
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