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b5893a0881
linux/drivers/net/ethernet
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Ben Dooks b5893a0881 sh_eth: ensure pm_runtime cannot suspend the device during init 
The pm_rumtime work queue is causing the device to be suspended during
initialisation, thus the initialisation may not be able to access registers
properly. As the code is called from a work queue, it is possible that this
is not seen from certain configurations/builds due to the asynchronos
nature of the code.

Another issue has also been found where the network device registration
calls back into the driver thus causing further pm_runtime calls that
also caused issues with the MDIO bus code. This has now been checked
and is the only place the MDIO can be called without the device open.

Use pm_runtime_get_sync() and pm_runtime_put() to ensure that the
pm system does not suspend it during the probe() call and remove the
now unnecessary pm_runtime_resume() call. Also add a call in the error
path to call pm_runtime_disable().

This fixes the external abort that can cause /sbin/init or other such
init processed to die.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-28 15:59:44 -04:00
..
3com 3c59x: Call dev_consume_skb_any instead of dev_kfree_skb. 2014-03-24 15:17:22 -07:00
8390 8390: Call dev_consume_skb_any instead of dev_kfree_skb. 2014-03-24 15:22:02 -07:00
adaptec net: starfire: remove unnecessary pci_set_drvdata() 2013-10-18 00:03:28 -04:00
adi bfin_mac: remove empty MDIO bus reset function 2014-03-28 01:38:02 -04:00
aeroflex net: greth: remove empty MDIO bus reset function 2014-03-28 01:38:01 -04:00
allwinner sun4i-emac: Call dev_consume_skb_any instead of dev_kfree_skb. 2014-03-24 21:15:53 -07:00
alteon drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
altera altera: Remove casts of pointer to same type 2014-03-26 15:46:15 -04:00
amd pcnet32: Call dev_kfree_skb_any instead of dev_kfree_skb. 2014-03-24 21:18:53 -07:00
apple macmace: add missing platform_set_drvdata() in mace_probe() 2013-11-11 14:02:08 -05:00
arc Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-01-06 17:37:45 -05:00
atheros alx: Remove casts of pointer to same type 2014-03-26 15:46:15 -04:00
broadcom tg3: remove empty MDIO bus reset function 2014-03-28 01:38:01 -04:00
brocade bnad: Call dev_kfree_skb_any instead of dev_kfree_skb. 2014-03-24 21:18:55 -07:00
cadence macb: remove empty MDIO bus reset function 2014-03-28 01:38:01 -04:00
calxeda xgmac: Call dev_kfree/consume_skb_any instead of dev_kfree_skb. 2014-03-24 21:18:56 -07:00
chelsio chelsio: Remove addressof casts to same type 2014-03-26 15:46:15 -04:00
cirrus cs89x0: Call dev_consume_skb_any instead of dev_kfree_skb. 2014-03-24 21:18:58 -07:00
cisco enic: Call dev_kfree_skb_any instead of dev_kfree_skb. 2014-03-24 21:18:59 -07:00
davicom dm9000: Call dev_consume_skb_any instead of dev_kfree_skb. 2014-03-24 21:18:59 -07:00
dec uli526x: Call dev_kfree/consume_skb_any instead of dev_kfree_skb. 2014-03-24 21:19:00 -07:00
dlink sundance: Call dev_kfree_skb_any instead of dev_kfree_skb. 2014-03-24 21:19:01 -07:00
emulex be2net: csum, tso and rss steering offload support for VxLAN 2014-03-28 14:24:54 -04:00
faraday net: ftgmac100: remove empty MDIO bus reset function 2014-03-28 01:38:02 -04:00
freescale fs_enet: remove empty MDIO bus function 2014-03-28 01:38:02 -04:00
fujitsu drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
hp
i825xx i825xx: Call dev_kfree_skb_any instead of dev_kfree_skb. 2014-03-24 21:19:02 -07:00
ibm ibmveth: Call dev_consume_skb_any instead of dev_kfree_skb. 2014-03-24 21:19:03 -07:00
icplus drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
intel igb: fix race conditions on queuing skb for HW time stamp 2014-03-28 06:54:02 -07:00
marvell net: mvmdio: remove empty MDIO bus reset function 2014-03-28 01:38:02 -04:00
mellanox ptp: drivers: set the number of programmable pins. 2014-03-21 14:21:14 -04:00
micrel Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-03-25 20:29:20 -04:00
microchip
moxa drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
myricom myri10ge: Use pci_enable_msix_range() instead of pci_enable_msix() 2014-02-18 15:33:32 -05:00
natsemi Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-01-25 11:17:34 -08:00
neterion vxge: Call dev_kfree_skb_any instead of dev_kfree_skb. 2014-03-24 21:19:07 -07:00
nuvoton
nvidia forcedeth: Call dev_kfree_skb_any instead of kfree_skb. 2014-03-24 21:19:08 -07:00
nxp drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
octeon Merge branch 'for-linus-dma-masks' of git://git.linaro.org/people/rmk/linux-arm 2013-11-14 07:55:21 +09:00
oki-semi ethernet: Fix FSF address in file headers 2013-12-06 12:37:55 -05:00
packetengines net: packetengines: slight optimization of addr 2013-12-31 16:48:32 -05:00
pasemi drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
qlogic qlcnic: Remove casts of pointer to same type 2014-03-26 15:46:16 -04:00
rdc r6040: remove empty MDIO bus reset function 2014-03-28 01:38:02 -04:00
realtek net: Replace u64_stats_fetch_begin_bh to u64_stats_fetch_begin_irq 2014-03-14 22:41:36 -04:00
renesas sh_eth: ensure pm_runtime cannot suspend the device during init 2014-03-28 15:59:44 -04:00
samsung net: sxgbe: fix potential null dereference 2014-03-28 14:42:24 -04:00
seeq drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
sfc ptp: drivers: set the number of programmable pins. 2014-03-21 14:21:14 -04:00
sgi drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
silan sc92031: Call dev_consume_skb_any instead of dev_kfree_skb. 2014-03-24 21:19:08 -07:00
sis sis900: Call dev_kfree_skb_any instead of dev_kfree_skb. 2014-03-24 21:19:09 -07:00
smsc smsc911x: No need to print driver version 2014-03-26 15:46:15 -04:00
stmicro net: stmmac: Add SOCFPGA glue driver 2014-03-28 15:06:32 -04:00
sun sungem: Call dev_consume_skb_any instead of dev_kfree_skb. 2014-03-24 21:19:12 -07:00
tehuti net: Spelling s/transmition/transmission/ 2014-01-14 17:11:26 -08:00
ti Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-03-25 20:29:20 -04:00
tile tilepro: Call dev_consume_skb_any instead of kfree_skb. 2014-03-24 21:19:12 -07:00
toshiba spider_net: Call dev_consume_skb_any instead of dev_kfree_skb. 2014-03-24 21:19:13 -07:00
tundra drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
via Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-03-25 20:29:20 -04:00
wiznet net: w5100: Use devm_ioremap_resource() 2014-02-28 16:57:24 -05:00
xilinx net: emaclite: remove empty MDIO bus reset function 2014-03-28 01:38:02 -04:00
xircom ethernet: Fix FSF address in file headers 2013-12-06 12:37:55 -05:00
xscale ixp4xx_eth: Implement the SIOCGHWTSTAMP ioctl 2013-11-21 17:17:48 +00:00
dnet.c dnet: remove empty MDIO bus reset function 2014-03-28 01:38:02 -04:00
dnet.h
ethoc.c net: ethoc: remove empty MDIO bus function 2014-03-28 01:38:02 -04:00
fealnx.c net: fealnx: remove unnecessary pci_set_drvdata() 2013-10-21 17:21:01 -04:00
jme.c jme: Call dev_kfree_skb_any instead of dev_kfree_skb. 2014-03-24 21:19:04 -07:00
jme.h jme: Remove unused #define PFX 2013-11-07 02:14:32 -05:00
Kconfig net: sxgbe: add basic framework for Samsung 10Gb ethernet driver 2014-03-26 16:49:31 -04:00
korina.c drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00
lantiq_etop.c netdevice: add queue selection fallback handler for ndo_select_queue 2014-02-17 00:36:34 -05:00
Makefile net: sxgbe: add basic framework for Samsung 10Gb ethernet driver 2014-03-26 16:49:31 -04:00
netx-eth.c ethernet: Fix FSF address in file headers 2013-12-06 12:37:55 -05:00
s6gmac.c drivers/net: delete non-required instances of include <linux/init.h> 2014-01-16 11:53:26 -08:00