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5b2fc2a12c
linux/drivers/parisc
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James Bottomley 93964fd4ea parisc: pdc_stable: Fix locking when creating sysfs links 
There's no need to take the write lock when creating sysfs links.

This patch fixes the following BUG:
 BUG: sleeping function called from invalid context at mm/slab.h:416
 in_atomic(): 1, irqs_disabled(): 0, pid: 1, name: swapper/0
 CPU: 2 PID: 1 Comm: swapper/0 Not tainted 4.13.0-rc2-00110-g0b5477d9dabd #111
 Backtrace:
 [<0000000040217ac8>] show_stack+0x20/0x38
 [<00000000406fbbb0>] dump_stack+0xb0/0x128
 [<0000000040274090>] ___might_sleep+0x180/0x1b8
 [<0000000040274144>] __might_sleep+0x7c/0xe8
 [<0000000040373874>] kmem_cache_alloc+0x14c/0x1e0
 [<0000000040419514>] __kernfs_new_node+0x84/0x1b8
 [<000000004041b09c>] kernfs_new_node+0x3c/0x78
 [<000000004041e040>] kernfs_create_link+0x40/0xd8
 [<000000004041f320>] sysfs_do_create_link_sd.isra.0+0xb0/0x130
 [<000000004041f3d4>] sysfs_create_link+0x34/0x58
 [<000000004011b4a4>] pdc_stable_init+0x2c4/0x458
 [<0000000040200250>] do_one_initcall+0x70/0x1d8
 [<0000000040101644>] kernel_init_freeable+0x27c/0x390
 [<000000004020be44>] kernel_init+0x24/0x1c0

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Reported-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: Helge Deller <deller@gmx.de>
2017-07-31 16:43:13 +02:00
..
asp.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ccio-dma.c parisc: ->mapping_error 2017-07-05 21:46:42 +02:00
ccio-rm-dma.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
dino.c parisc: DMA API: return error instead of BUG_ON for dma ops on non dma devs 2017-07-03 17:00:46 +02:00
eisa_eeprom.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
eisa_enumerator.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
eisa.c parisc: eisa: Fix resource leaks in error paths 2017-02-25 22:21:21 +01:00
gsc.c parisc: Convert irq namespace 2011-03-29 14:48:08 +02:00
gsc.h parisc: remove obsolete hw_interrupt_type 2009-07-03 03:34:08 +00:00
hppb.c drivers/parisc: Use printf extension %pR for struct resource 2013-02-20 22:47:24 +01:00
iommu-helpers.h parisc iommu: fix panic due to trying to allocate too large region 2015-12-12 16:07:25 +01:00
iosapic_private.h
iosapic.c parisc/irq: Use access helper irq_data_get_affinity_mask() 2015-07-31 22:20:04 +02:00
Kconfig PCI: Include pci/hotplug Kconfig directly from pci/Kconfig 2016-03-08 15:10:48 -06:00
lasi.c
lba_pci.c parisc: DMA API: return error instead of BUG_ON for dma ops on non dma devs 2017-07-03 17:00:46 +02:00
led.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
Makefile
pdc_stable.c parisc: pdc_stable: Fix locking when creating sysfs links 2017-07-31 16:43:13 +02:00
power.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h> 2017-03-02 08:42:29 +01:00
README.dino Update broken web addresses in the kernel. 2010-10-18 11:03:14 +02:00
sba_iommu.c parisc: ->mapping_error 2017-07-05 21:46:42 +02:00
superio.c parisc: %pf is only for function pointers 2015-04-24 13:45:54 +02:00
wax.c

README.dino 

/*
** HP VISUALIZE Workstation PCI Bus Defect
**
** "HP has discovered a potential system defect that can affect
** the behavior of five models of HP VISUALIZE workstations when
** equipped with third-party or customer-installed PCI I/O expansion
** cards. The defect is limited to the HP C180, C160, C160L, B160L,
** and B132L VISUALIZE workstations, and will only be encountered
** when data is transmitted through PCI I/O expansion cards on the
** PCI bus. HP-supplied graphics cards that utilize the PCI bus are
** not affected."
**
** http://h20000.www2.hp.com/bizsupport/TechSupport/Home.jsp?locale=en_US&prodTypeId=12454&prodSeriesId=44443
**
**	Product		First Good Serial Number
**  C200/C240 (US)	US67350000
**B132L+/B180 (US)	US67390000
**   C200 (Europe)	3713G01000
**  B180L (Europe)	3720G01000
**
** Note that many boards were fixed/replaced under a free replacement
** program. Assume a machine is only "suspect" until proven otherwise.
**
** "The pci_check program will also be available as application
**  patch PHSS_12295"
*/