linux_dsm_epyc7002/drivers/misc
James Bottomley a1470c7bf3 [SCSI] enclosure: fix WARN_ON in dual path device removing
Bug report from: wenxiong@linux.vnet.ibm.com

The issue is happened in dual controller configuration. We got the
sysfs warnings when rmmod the ipr module.

enclosure_unregister() in drivers/msic/enclosure.c, call device_unregister()
for each componment deivce, device_unregister() ->device_del()->kobject_del()
->sysfs_remove_dir(). In sysfs_remove_dir(), set kobj->sd = NULL.

For each componment device,
enclosure_component_release()->enclosure_remove_links()->sysfs_remove_link()
in which checking kobj->sd again, it has been set as NULL when doing
device_unregister. So we saw all these sysfs WARNING.

Tested-by: wenxiong@linux.vnet.ibm.com
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-12-02 11:13:14 -08:00
..
altera-stapl
c2port
carma
cb710
eeprom
ibmasm
lis3lv02d
mei
mic
sgi-gru
sgi-xp
ti-st
vmw_vmci
ad525x_dpot-i2c.c
ad525x_dpot-spi.c
ad525x_dpot.c
ad525x_dpot.h
apds990x.c
apds9802als.c
arm-charlcd.c
atmel_pwm.c
atmel_tclib.c
atmel-ssc.c
bh1770glc.c
bh1780gli.c
bmp085-i2c.c
bmp085-spi.c
bmp085.c
bmp085.h
cs5535-mfgpt.c
ds1682.c
dummy-irq.c
enclosure.c
fsa9480.c
hmc6352.c
hpilo.c
hpilo.h
ics932s401.c
ioc4.c
isl29003.c
isl29020.c
Kconfig
kgdbts.c
lattice-ecp3-config.c
lkdtm.c
Makefile
pch_phub.c
phantom.c
pti.c
spear13xx_pcie_gadget.c
sram.c
ti_dac7512.c
tifm_7xx1.c
tifm_core.c
tsl2550.c
vmw_balloon.c