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author | Masoud Sharbiani <masouds@google.com> | 2008-09-10 16:22:34 -0400 |
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committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-09-10 16:22:34 -0400 |
commit | 62ff2ecf7a4e69f7271b7f7a57aaee76ffe610f2 (patch) | |
tree | 253db0a828c4deef4add471fc9ddba047b1383d7 /drivers/ide/ide-probe.c | |
parent | adee14b2e1557d0a8559f29681732d05a89dfc35 (diff) |
ide: Fix pointer arithmetic in hpt3xx driver code (3rd try)
git commit 74811f355f4f69a187fa74892dcf2a684b84ce99 causes crash at
module load (or boot) time on my machine with a hpt374 controller.
The reason for this is that for initializing second controller which sets
(hwif->dev == host->dev[1]) to true (1), adds 1 to a void ptr, which
advances it by one byte instead of advancing it by sizeof(hpt_info) bytes.
Because of this, all initialization functions get corrupted data in info
variable which causes a crash at boot time.
This patch fixes that and makes my machine boot again.
The card itself is a HPT374 raid conroller: Here is the lspci -v output:
03:06.0 RAID bus controller: HighPoint Technologies, Inc. HPT374 (rev
07)
Subsystem: HighPoint Technologies, Inc. Unknown device 0001
Flags: bus master, 66MHz, medium devsel, latency 120, IRQ 28
I/O ports at 8000 [size=8]
I/O ports at 7800 [size=4]
I/O ports at 7400 [size=8]
I/O ports at 7000 [size=4]
I/O ports at 6800 [size=256]
Expansion ROM at fe8e0000 [disabled] [size=128K]
Capabilities: [60] Power Management version 2
03:06.1 RAID bus controller: HighPoint Technologies, Inc. HPT374 (rev
07)
Subsystem: HighPoint Technologies, Inc. Unknown device 0001
Flags: bus master, 66MHz, medium devsel, latency 120, IRQ 28
I/O ports at 9800 [size=8]
I/O ports at 9400 [size=4]
I/O ports at 9000 [size=8]
I/O ports at 8800 [size=4]
I/O ports at 8400 [size=256]
Capabilities: [60] Power Management version 2
Signed-off-by: Masoud Sharbiani <masouds@google.com>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
[bart: use dev_get_drvdata() per Sergei's suggestion]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/ide-probe.c')
0 files changed, 0 insertions, 0 deletions