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firewire: fw-sbp2: fix parsing of logical unit directories

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There is a small off-by-one bug in firewire-sbp2. This causes problems
when a device exports multiple LUN Directories. I found it when trying
to talk to a SONY DVD Jukebox.

Signed-off-by: Richard Sharpe <realrichardsharpe@gmail.com>
Acked-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (op. order, changelog)
This commit is contained in:
Richard Sharpe 2008-06-24 19:11:13 -07:00 committed by Stefan Richter
parent 543cf4cb3f
commit 0e3e2eabf4
1 changed files with 2 additions and 1 deletions
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drivers/firewire/fw-sbp2.c
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@ -1051,7 +1051,8 @@ static int sbp2_scan_unit_dir(struct sbp2_target *tgt, u32 *directory,
break;
case SBP2_CSR_LOGICAL_UNIT_DIRECTORY:
if (sbp2_scan_logical_unit_dir(tgt, ci.p + value) < 0)
/* Adjust for the increment in the iterator */
if (sbp2_scan_logical_unit_dir(tgt, ci.p - 1 + value) < 0)
return -ENOMEM;
break;
}