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Borislav Petkov 5e8e19bf6c EDAC: Correct scrub rate API 
The original scrub rate API definition states that if scrub rate
accessors are not implemented, a negative value (-1) should be written
to the sysfs file (/sys/devices/system/edac/mc/mc<N>/sdram_scrub_rate,
where N is the memory controller number on the system). This is
counter-intuitive and awkward at the very least because, when setting
the scrub rate, userspace has to write to sysfs and then read it back to
check error status of the operation.

As Tony notes, best it would be to not have the sdram_scrub_rate in
sysfs if scrub rate support is not implemented. It is too late about
that and a bunch of drivers on a bunch of arches would need to be
changed and tested which is not a trivial task ATM.

Instead, settle for the next best thing of returning -ENODEV when
implementation is missing and -EINVAL when there was an error
encountered while setting the scrub rate.

Reported-by: Han Pingtian <phan@redhat.com>
Cc: Tony Luck <tony.luck@intel.com>
Link: http://lkml.kernel.org/r/20110916105856.GA13253@hpt.nay.redhat.com
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
 		2012-03-19 12:03:58 +01:00
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accessibility
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acpi ACPI: remove duplicated lines of merging problems with acpi_processor_add 2012-02-08 15:07:03 -08:00
amba
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ata pata/at91: use newly introduced SMC accessors 2012-02-13 18:31:37 +01:00
atm drivers/atm/solos-pci.c: exchange pci_iounmaps 2012-02-19 18:57:51 -05:00
auxdisplay
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base Fixes a bootstrapping issue for some registers when a less commonly used 2012-02-18 15:37:25 -08:00
bcma bcma: don't fail for bad SPROM CRC 2012-02-06 14:37:52 -05:00
block Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2012-03-14 17:16:45 -07:00
bluetooth Bluetooth: btusb: Add vendor specific ID (0a5c 21f3) for BCM20702A0 2012-02-15 13:09:26 +02:00
cdrom cdrom: move shared static to cdrom_device_info 2012-02-08 20:03:14 +01:00
char agp: fix scratch page cleanup 2012-01-26 18:36:48 +00:00
clk
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clocksource
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connector
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cpufreq
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cpuidle cpuidle: Default y on powerpc pSeries 2012-02-22 16:48:51 +11:00
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2012-03-03 09:31:49 -08:00
dca
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devfreq
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dio
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dma i.MX SDMA: Fix burstsize settings 2012-02-02 14:00:43 +05:30
edac EDAC: Correct scrub rate API 2012-03-19 12:03:58 +01:00
eisa
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firewire firewire: ohci: disable MSI on Ricoh controllers 2012-01-30 21:33:34 +01:00
firmware
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gpio gpio: Add missing spin_lock_init in gpio-ml-ioh driver 2012-02-01 21:59:37 -07:00
gpu Merge branch 'exynos-drm-fixes' of git://git.infradead.org/users/kmpark/linux-samsung into drm-fixes 2012-03-15 09:41:26 +00:00
hid HID: hid-input: allow array fields out of range 2012-03-05 10:28:58 +01:00
hv
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hwmon hwmon: (zl6100) Enable interval between chip accesses for all chips 2012-03-14 09:17:03 -07:00
hwspinlock
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i2c i2c-algo-bit: Fix spurious SCL timeouts under heavy load 2012-03-15 18:11:05 +01:00
ide ARM: at91: drop ide driver in favor of the pata one 2012-02-13 18:31:37 +01:00
idle ACPI processor hotplug: Delay acpi_processor_start() call for hotplugged cores 2012-01-19 21:26:32 -05:00
ieee802154
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infiniband Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-02-10 14:18:46 -08:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2012-03-07 08:31:31 -08:00
iommu x86/amd: iommu_set_device_table() must not be __init 2012-03-08 11:36:06 +01:00
isdn isdn: type bug in isdn_net_header() 2012-02-09 15:41:29 -05:00
leds drivers/leds/leds-lm3530.c: fix setting pltfm->als_vmax 2012-02-08 19:03:51 -08:00
lguest
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macintosh powerpc/adb: Use set_current_state() 2012-02-16 16:15:12 +11:00
mca
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md Device-mapper fixes for 3.3. 2012-03-08 17:21:51 -08:00
media Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2012-03-15 17:06:05 -07:00
memstick
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message
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mfd mfd: Correct readability of WM8994 DC servo 4E register 2012-03-01 01:42:52 +01:00
misc c2port: class_create() returns an ERR_PTR 2012-03-05 15:49:43 -08:00
mmc mmc: core: Fixup suspend/resume issues for UHS-I cards 2012-03-04 12:25:15 -05:00
mtd - Fix a regression in 16-bit Atmel NAND flash which was introduced in 3.1 2012-02-04 07:17:47 -08:00
net wimax/i2400m: fix erroneous NETDEV_TX_BUSY use 2012-03-16 02:01:41 -07:00
nfc
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nubus
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of of/mdio: fix fixed link bus name 2012-02-27 10:09:52 -06:00
oprofile
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parisc [PARISC] include <linux/prefetch.h> in drivers/parisc/iommu-helpers.h 2012-02-27 09:44:15 -06:00
parport
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pci PCI: ignore pre-1.1 ASPM quirking when ASPM is disabled 2012-03-07 20:26:47 -08:00
pcmcia ARM: pxa: fix error handling in pxa2xx_drv_pcmcia_probe 2012-02-16 10:41:23 +08:00
pinctrl pinctrl: restore pin naming 2012-02-01 19:35:21 +01:00
platform panasonic-laptop: avoid overflow in acpi_pcc_hotkey_add() 2012-03-12 10:25:51 -04:00
pnp
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power lp8727_charger: Add terminating entry for i2c_device_id table 2012-02-01 21:34:26 +04:00
pps pps: class_create() returns an ERR_PTR, not NULL 2012-03-05 15:49:43 -08:00
ps3
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ptp
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rapidio rapidio/tsi721: fix bug in register offset definitions 2012-03-15 17:03:03 -07:00
regulator regulator: da9052: Ensure the selected voltage falls within the specified range 2012-03-11 20:39:10 +00:00
rtc drivers/rtc/rtc-r9701.c: fix crash in r9701_remove() 2012-03-05 15:49:43 -08:00
s390 [S390] qdio: fix handler function arguments for zfcp data router 2012-03-02 17:33:00 +01:00
sbus
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scsi floppy/scsi: fix setting of BIO flags 2012-03-05 15:49:43 -08:00
sfi
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sh sh: clkfwk: bugfix: use clk_reparent() for div6 clocks 2012-01-24 10:44:49 +09:00
sn
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spi Fix section mismatch in spi-pl022.c 2012-02-13 11:57:58 -07:00
ssb ssb: fix cardbus slot in hostmode 2012-02-01 15:26:00 -05:00
staging staging: pohmelfs: remove drivers/staging/pohmelfs 2012-02-08 16:19:06 -08:00
target iscsi-target: Fix reservation conflict -EBUSY response handling bug 2012-03-13 21:43:58 -07:00
tc
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telephony
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thermal thermal: Rename generate_netlink_event 2012-01-23 03:15:25 -05:00
tty sh-sci / PM: Avoid deadlocking runtime PM 2012-03-09 12:59:44 +09:00
uio
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usb Revert "powerpc/usb: fix issue of CPU halt when missing USB PHY clock" 2012-03-02 16:08:54 -08:00
uwb
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vhost
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video drivers/video/backlight/s6e63m0.c: fix corruption storing gamma mode 2012-03-15 17:03:04 -07:00
virt
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virtio virtio: balloon: leak / fill balloon across S4 2012-03-01 09:28:41 +10:30
vlynq
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w1
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watchdog watchdog: fix GETTIMEOUT ioctl in booke_wdt 2012-02-29 09:46:13 +01:00
xen xenbus_dev: add missing error check to watch handling 2012-02-03 16:07:05 -05:00
zorro
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Kconfig
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Makefile
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