android_kernel_xiaomi_sm7250/drivers
Linus Torvalds dc87c3985e libata: honour host controllers that want just one host
The Marvell IDE interface on my machine would hit a BUG_ON() in
lib/iomem.c because it was calling ata_pci_init_one() specifying just a
single port on the host, but that would actually end up trying to
initialize two ports, the second one with bogus information.

This fixes "ata_pci_init_one()" so that it actually passes down the
n_ports variable that it got from the low-level driver to the host
allocation routine ("ata_host_alloc_pinfo()"), which results in the ATA
layer actually having the correct port number information.

And in order to make it all work, I also needed to fix a few places that
had incorrectly hard-coded the fact that a host always had exactly two
ports (both ata_pci_init_bmdma() and ata_request_legacy_irqs() would
just always iterate over both ports).

Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-04-30 17:43:48 -07:00
..
acorn
acpi power management: implement pm_ops.valid for everybody 2007-04-30 16:40:40 -07:00
amba
ata libata: honour host controllers that want just one host 2007-04-30 17:43:48 -07:00
atm
auxdisplay
base
block
bluetooth
cdrom
char Merge branch 'for-2.6.22' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-04-30 08:10:12 -07:00
clocksource
connector
cpufreq
crypto
dio
dma
edac
eisa
fc4
firmware
hid Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jikos/hid 2007-04-30 08:58:21 -07:00
hwmon
i2c
ide
ieee1394
infiniband
input
isdn
kvm
leds
macintosh
mca
md [BLOCK] Don't pin lots of memory in mempools 2007-04-30 09:08:17 +02:00
media Merge branch 'for-2.6.22' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-04-30 08:10:12 -07:00
message
mfd
misc
mmc
mtd
net Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2007-04-30 08:14:42 -07:00
nubus
oprofile
parisc
parport
pci
pcmcia
pnp
ps3 [POWERPC] Remove dev_dbg redefinition in drivers/ps3/vuart.c 2007-04-30 13:03:39 +10:00
rapidio
rtc
s390
sbus
scsi Merge branch 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block 2007-04-30 08:12:39 -07:00
serial
sh
sn
spi
tc
telephony
usb Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jikos/hid 2007-04-30 08:58:21 -07:00
video
w1
zorro
Kconfig
Makefile