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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2007-10-19 00:30:05 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-10-19 00:30:05 +0200
commit15d8061bf02aa299b2447f7a22fd18b4a503ea9d (patch)
treec5b51f72381c3930313cbb2fa386135a2e675b28
parenta87a87ccdc541e0a0cc8c7d01a365be8d9153a7b (diff)
downloadop-kernel-dev-15d8061bf02aa299b2447f7a22fd18b4a503ea9d.zip
op-kernel-dev-15d8061bf02aa299b2447f7a22fd18b4a503ea9d.tar.gz
ide: Fix cs5535 driver accessing beyond array boundary
The cs5535 uses an incorrect construct to access the other drive of a pair, causing it to access beyond an array boundary on the secondary interface. This fixes it by using the new ide_get_paired_drive() helper instead. Bart: patch description fixes Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Andrew Morton <akpm@osdl.org> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
-rw-r--r--drivers/ide/pci/cs5535.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/ide/pci/cs5535.c b/drivers/ide/pci/cs5535.c
index e4891a1..c141b73 100644
--- a/drivers/ide/pci/cs5535.c
+++ b/drivers/ide/pci/cs5535.c
@@ -84,7 +84,7 @@ static void cs5535_set_speed(ide_drive_t *drive, const u8 speed)
/* Set the PIO timings */
if ((speed & XFER_MODE) == XFER_PIO) {
- ide_drive_t *pair = &drive->hwif->drives[drive->dn ^ 1];
+ ide_drive_t *pair = ide_get_paired_drive(drive);
u8 cmd, pioa;
cmd = pioa = speed - XFER_PIO_0;
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