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[PATCH] sbp2: fix check of return value of hpsb_allocate_and_register_addrspace()

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From: Stefan Richter <stefanr@s5r6.in-berlin.de>

I added a failure check in patch "sbp2: variable status FIFO address (fix
login timeout)" --- alas for a wrong error value.  This is a bug since
Linux 2.6.16.  Leads to NULL pointer dereference if the call failed, and
bogus failure handling if call succeeded.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Cc: <stable@kernel.org>
Cc: Ben Collins <bcollins@debian.org>
Cc: Jody McIntyre <scjody@modernduck.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Stefan Richter 2006-06-04 02:51:40 -07:00 committed by Linus Torvalds
parent 948c51e6a8
commit 829a1985e7
1 changed files with 1 additions and 1 deletions
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2
drivers/ieee1394/sbp2.c
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@ -845,7 +845,7 @@ static struct scsi_id_instance_data *sbp2_alloc_device(struct unit_directory *ud
&sbp2_highlevel, ud->ne->host, &sbp2_ops,
sizeof(struct sbp2_status_block), sizeof(quadlet_t),
0x010000000000ULL, CSR1212_ALL_SPACE_END);
if (!scsi_id->status_fifo_addr) {
if (scsi_id->status_fifo_addr == ~0ULL) {
SBP2_ERR("failed to allocate status FIFO address range");
goto failed_alloc;
}