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authorTejun Heo <htejun@gmail.com>2007-03-03 17:48:53 +0100
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-03-03 17:48:53 +0100
commitfab59375b9543f84d1714f7dd00f5d11e531bd3e (patch)
tree06b102c2c4821fb3af4687156c146d0d663c5392 /drivers/ide
parentf92d50e6fd14f6e4601f59aac4cffe617b7b2ce6 (diff)
downloadop-kernel-dev-fab59375b9543f84d1714f7dd00f5d11e531bd3e.zip
op-kernel-dev-fab59375b9543f84d1714f7dd00f5d11e531bd3e.tar.gz
ide: fix drive side 80c cable check, take 2
eighty_ninty_three() had word 93 validitity check but not the 80c bit test itself (bit 13). This increases the chance of incorrect wire detection especially because host side cable detection is often unreliable and we sometimes soley depend on drive side cable detection. Fix it. [ bart: fix off-by-1 bit name in the patch description ] Signed-off-by: Tejun Heo <htejun@gmail.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide')
-rw-r--r--drivers/ide/ide-iops.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index c67b3b1..bd513f5 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -583,6 +583,8 @@ u8 eighty_ninty_three (ide_drive_t *drive)
if(!(drive->id->hw_config & 0x4000))
return 0;
#endif /* CONFIG_IDEDMA_IVB */
+ if (!(drive->id->hw_config & 0x2000))
+ return 0;
return 1;
}
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