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Hidetoshi Seto 0d07348931 PCI MSI: Return if alloc_msi_entry for MSI-X failed 
In current code it continues setup even if alloc_msi_entry() for MSI-X
is failed due to lack of memory.  It means arch_setup_msi_irqs() might
be called with msi_desc entries less than its argument nvec.

At least x86's arch_setup_msi_irqs() uses list_for_each_entry() for
dev->msi_list that suspected to have entries same numbers as nvec, and
it doesn't check the number of allocated vectors and passed arg nvec.
Therefore it will result in success of pci_enable_msix(), with less
vectors allocated than requested.

This patch fixes the error route to return -ENOMEM, instead of continuing
the setup (proposed by Matthew Wilcox).

Note that there is no iounmap in msi_free_irqs() if no msi_disc is
allocated.

Reviewed-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
 		2009-06-29 12:10:10 -07:00
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accessibility
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acpi ACPI: video: prevent NULL deref in acpi_get_pci_dev() 2009-06-26 00:23:42 -04:00
amba
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ata libata: don't set IORDY for reset 2009-06-23 01:54:30 -04:00
atm
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auxdisplay
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base Merge branch 'akpm' 2009-06-16 19:50:13 -07:00
block hd: stop defining MAJOR_NR 2009-06-18 09:56:20 +02:00
bluetooth Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 2009-06-15 03:02:23 -07:00
cdrom
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char tty: Fix the leak in tty_ldisc_release 2009-06-29 09:33:26 -07:00
clocksource Merge branches 'sh/pci-express-integration', 'sh/rsk-updates', 'sh/platform-updates' and 'sh/perf_counter' 2009-06-17 16:37:26 +09:00
connector trivial: Kconfig: .ko is normally not included in module names 2009-06-12 18:01:50 +02:00
cpufreq [CPUFREQ] Only set sampling_rate_max deprecated, sampling_rate_min is useful 2009-06-15 11:49:41 -04:00
cpuidle
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crypto crypto: padlock-aes - work around Nano CPU errata in CBC mode 2009-06-18 19:31:09 +08:00
dca
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dio
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dma DMA: txx9dmac: use dma_unmap_single if DMA_COMPL_{SRC,DEST}_UNMAP_SINGLE set 2009-06-24 18:34:40 +01:00
edac amd64_edac: misc small cleanups 2009-06-26 13:06:41 +02:00
eisa Merge branch 'akpm' 2009-06-16 19:50:13 -07:00
firewire Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2009-06-22 21:29:52 -07:00
firmware Pull for-2.6.31 into release 2009-06-17 09:35:24 -07:00
gpio gpio: driver for PrimeCell PL061 GPIO controller 2009-06-19 16:46:03 -07:00
gpu Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 2009-06-25 17:04:37 -07:00
hid Driver Core: usb: add nodename support for usb drivers. 2009-06-15 21:30:25 -07:00
hwmon Merge branch 'akpm' 2009-06-16 19:50:13 -07:00
i2c i2c: fix build bug in i2c-designware.c 2009-06-25 11:22:12 -07:00
ide ide cs5520: Initialize second port's interrupt number. 2009-06-24 02:36:17 -07:00
idle
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ieee1394 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2009-06-22 21:29:52 -07:00
ieee802154 ieee802154: fix kconfig bool/tristate muckup 2009-06-13 23:36:29 -07:00
infiniband Merge branches 'ehca', 'misc', 'mlx4', 'mthca' and 'nes' into for-linus 2009-06-23 10:38:47 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2009-06-20 10:17:02 -07:00
isdn net: fix network drivers ndo_start_xmit() return values 2009-06-17 04:31:16 -07:00
leds leds: Add options to have GPIO LEDs start on or keep their state 2009-06-23 20:21:39 +01:00
lguest Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-lguest 2009-06-12 09:32:26 -07:00
macintosh powerpc/pmac: Fix DMA ops for MacIO devices 2009-06-26 14:37:25 +10:00
mca
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md dm mpath: change to be request based 2009-06-22 10:12:37 +01:00
media V4L/DVB (12131): BUGFIX: An incorrect Carrier Recovery Loop optimization table was being 2009-06-23 03:29:57 -03:00
memstick
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message fusion: mptsas, fix lock imbalance 2009-06-22 08:54:14 -05:00
mfd [WATCHDOG] twl4030 watchdog driver 2009-06-20 18:39:43 +00:00
misc gru: copyright fixes 2009-06-18 13:04:04 -07:00
mmc sdhci: remove needless double parenthesis 2009-06-21 21:01:00 +02:00
mtd Merge git://git.infradead.org/mtd-2.6 2009-06-22 16:56:22 -07:00
net be2net: Fix to avoid a crash seen on PPC with LRO and Jumbo frames. 2009-06-28 17:34:25 -07:00
nubus
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of Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-06-15 09:40:05 -07:00
oprofile
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parisc parisc: remove driver_data direct access of struct device 2009-06-15 21:30:28 -07:00
parport parport_pc: set properly the dma_mask for parport_pc device 2009-06-22 11:29:00 -07:00
pci PCI MSI: Return if alloc_msi_entry for MSI-X failed 2009-06-29 12:10:10 -07:00
pcmcia Merge branch 'akpm' 2009-06-16 19:50:13 -07:00
platform eeepc-laptop: Fix build failure with HOTPLUG_PCI && !SYSFS 2009-06-29 09:40:38 -07:00
pnp Merge branches 'acerhdf', 'acpi-pci-bind', 'bjorn-pci-root', 'bugzilla-12904', 'bugzilla-13121', 'bugzilla-13396', 'bugzilla-13533', 'bugzilla-13612', 'c3_lock', 'hid-cleanups', 'misc-2.6.31', 'pdc-leak-fix', 'pnpacpi', 'power_nocheck', 'thinkpad_acpi', 'video' and 'wmi' into release 2009-06-24 01:19:50 -04:00
power
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pps LinuxPPS: core support 2009-06-18 13:04:04 -07:00
ps3 drivers/ps3: Add missing annotations 2009-06-15 16:47:25 +10:00
rapidio rio: warn_unused_result warnings fix 2009-06-15 21:45:32 -05:00
regulator regulator/max1586: fix V3 gain calculation integer overflow 2009-06-15 11:18:27 +01:00
rtc rtc: make rtc_update_irq callable with irqs enabled 2009-06-19 16:46:05 -07:00
s390 [S390] dasd: fix refcounting in dasd_change_state 2009-06-22 12:08:23 +02:00
sbus openprom: Squelch useless GCC warning. 2009-06-16 04:56:57 -07:00
scsi [SCSI] scsi_transport_fc: replace BUS_ID_SIZE by fixed count 2009-06-21 12:11:43 -05:00
serial pci: use pci_ioremap_bar() in drivers/serial 2009-06-24 09:55:50 -07:00
sh
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sn
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spi spi_mpc8xxx: s/83xx/8xxx/g 2009-06-19 16:46:05 -07:00
ssb
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staging Staging: octeon-ethernet: Fix race freeing transmit buffers. 2009-06-24 18:34:41 +01:00
tc
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telephony
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thermal thermal: remove driver_data direct access of struct device 2009-06-15 21:30:27 -07:00
uio
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usb usb_serial: Fix oops when unexisting usb serial device is opened. 2009-06-25 11:24:26 -07:00
uwb
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video Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlight 2009-06-29 09:41:12 -07:00
virtio
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vlynq drivers: add support for the TI VLYNQ bus 2009-06-16 19:47:52 -07:00
w1 Merge git://git.infradead.org/battery-2.6 2009-06-24 14:35:57 -07:00
watchdog powerpc/rtas: Fix watchdog driver temperature read functionality 2009-06-26 16:55:37 +10:00
xen PM core: rename suspend and resume functions 2009-06-12 21:32:31 +02:00
zorro
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Kconfig LinuxPPS: core support 2009-06-18 13:04:04 -07:00
Makefile LinuxPPS: core support 2009-06-18 13:04:04 -07:00