forge/linux-uconsole
1
0
Fork 0
Code Issues 1 Pull requests Projects Releases Packages Wiki Activity Actions
linux-uconsole/drivers
History
Noralf Trønnes c5eb9a424e drm: Fix drm_release() and device unplug 
[ Upstream commit 3f04e0a6cf ]

If userspace has open fd(s) when drm_dev_unplug() is run, it will result
in drm_dev_unregister() being called twice. First in drm_dev_unplug() and
then later in drm_release() through the call to drm_put_dev().

Since userspace already holds a ref on drm_device through the drm_minor,
it's not necessary to add extra ref counting based on no open file
handles. Instead just drm_dev_put() unconditionally in drm_dev_unplug().

We now have this:
- Userpace holds a ref on drm_device as long as there's open fd(s)
- The driver holds a ref on drm_device as long as it's bound to the
  struct device

When both sides are done with drm_device, it is released.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Sean Paul <sean@poorly.run>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190208140103.28919-2-noralf@tronnes.org
Signed-off-by: Sasha Levin (Microsoft) <sashal@kernel.org>
2019-05-04 09:20:19 +02:00
..
accessibility
acpi Revert "ACPICA: Clear status of GPEs before enabling them" 2019-05-04 09:20:10 +02:00
amba
android binder: fix handling of misaligned binder object 2019-05-02 09:58:56 +02:00
ata libata: Add NOLPM quirk for SAMSUNG MZ7TE512HMHP-000L1 SSD 2019-02-15 08:10:10 +01:00
atm atm: he: fix sign-extension overflow on large shift 2019-02-27 10:08:57 +01:00
auxdisplay auxdisplay: hd44780: Fix memory leak on ->remove() 2019-04-20 09:15:55 +02:00
base mm: hide incomplete nr_indirectly_reclaimable in sysfs 2019-04-20 09:16:05 +02:00
bcma
block zram: pass down the bvec we need to read into in the work struct 2019-05-02 09:58:53 +02:00
bluetooth Bluetooth: hci_ldisc: Postpone HCI_UART_PROTO_READY bit set in hci_uart_set_proto() 2019-03-27 14:14:42 +09:00
bus
cdrom cdrom: Fix race condition in cdrom_sysctl_register 2019-04-05 22:33:10 +02:00
char tpm: Fix the type of the return value in calc_tpm2_event_size() 2019-04-27 09:36:40 +02:00
clk Revert "clk: meson: clean-up clock registration" 2019-04-17 08:38:46 +02:00
clocksource clocksource/drivers/arch_timer: Workaround for Allwinner A64 timer instability 2019-03-23 20:09:58 +01:00
connector connector: fix unsafe usage of ->real_parent 2019-03-19 13:12:38 +01:00
cpufreq cpufreq: acpi-cpufreq: Report if CPU doesn't support boost technologies 2019-04-05 22:33:03 +02:00
cpuidle cpuidle: big.LITTLE: fix refcount leak 2019-02-12 19:47:08 +01:00
crypto crypto: axis - fix for recursive locking from bottom half 2019-04-20 09:16:04 +02:00
dax mm, devm_memremap_pages: fix shutdown handling 2019-01-13 09:51:04 +01:00
dca
devfreq
dio
dma dmaengine: sh: rcar-dmac: Fix glitch in dmaengine_tx_status 2019-05-02 09:58:55 +02:00
dma-buf
edac EDAC, skx_edac: Fix logical channel intermediate decoding 2018-11-13 11:08:44 -08:00
eisa
extcon
firewire
firmware efi/arm/arm64: Allow SetVirtualAddressMap() to be omitted 2019-04-05 22:33:12 +02:00
fmc
fpga fpga: altera-cvp: fix 'bad IO access' on x86_64 2019-02-12 19:46:59 +01:00
fsi fsi: master-ast-cf: select GENERIC_ALLOCATOR 2018-12-17 09:24:35 +01:00
gnss gnss: sirf: fix premature wakeup interrupt enable 2019-03-10 07:17:21 +01:00
gpio gpio: eic: sprd: Fix incorrect irq type setting for the sync EIC 2019-05-02 09:58:53 +02:00
gpu drm: Fix drm_release() and device unplug 2019-05-04 09:20:19 +02:00
hid i2c-hid: properly terminate i2c_hid_dmi_desc_override_table[] array 2019-04-27 09:36:41 +02:00
hsi
hv Drivers: hv: vmbus: Check for ring when getting debug info 2019-01-31 08:14:36 +01:00
hwmon hwmon: (w83773g) Select REGMAP_I2C to fix build error 2019-04-17 08:38:47 +02:00
hwspinlock
hwtracing intel_th: gth: Fix an off-by-one in output unassigning 2019-05-02 09:58:56 +02:00
i2c i2c: i801: Add support for Intel Comet Lake 2019-05-04 09:20:15 +02:00
ide ide: fix a typo in the settings proc file name 2019-01-31 08:14:42 +01:00
idle
iio io: accel: kxcjk1013: restore the range after resume. 2019-04-27 09:36:35 +02:00
infiniband RDMA/mlx5: Do not allow the user to write to the clock page 2019-05-02 09:58:54 +02:00
input Input: synaptics-rmi4 - write config register values to the right offset 2019-05-02 09:58:55 +02:00
iommu iommu/dmar: Fix buffer overflow during PCI bus notification 2019-04-20 09:16:03 +02:00
ipack
irqchip irqchip/mbigen: Don't clear eventid when freeing an MSI 2019-04-20 09:15:59 +02:00
isdn mISDN: hfcpci: Test both vendor & device ID for Digium HFC4S 2019-04-03 06:26:16 +02:00
leds leds: lp55xx: fix null deref on firmware load failure 2019-04-05 22:33:07 +02:00
lightnvm lightnvm: pblk: add lock protection to list operations 2019-02-12 19:47:08 +01:00
macintosh
mailbox mailbox: bcm-flexrm-mailbox: Fix FlexRM ring flush timeout issue 2019-03-23 20:09:49 +01:00
mcb
md dm integrity: fix deadlock with overlapping I/O 2019-04-17 08:38:54 +02:00
media media: au0828: cannot kfree dev before usb disconnect 2019-04-20 09:16:01 +02:00
memory
memstick memstick: Prevent memstick host from getting runtime suspended during card detection 2019-02-12 19:47:10 +01:00
message
mfd mfd: sm501: Fix potential NULL pointer dereference 2019-03-23 20:10:09 +01:00
misc lkdtm: Add tests for NULL pointer dereference 2019-04-20 09:16:04 +02:00
mmc mmc: sdhci: Handle auto-command errors 2019-04-27 09:36:39 +02:00
mtd mtd: rawnand: gpmi: fix MX28 bus master lockup problem 2019-02-15 08:10:10 +01:00
mux mux: adgs1408: use the correct MODULE_LICENSE 2018-10-12 17:36:39 +02:00
net net: ethernet: ti: fix possible object reference leak 2019-05-04 09:20:19 +02:00
nfc NFC: nfcmrvl_uart: fix OF child-node lookup 2018-11-13 11:08:48 -08:00
ntb
nubus
nvdimm libnvdimm: Fix altmap reservation size calculation 2019-03-23 20:09:53 +01:00
nvme nvme-pci: add missing unlock for reset error 2019-03-13 14:02:38 -07:00
nvmem nvmem: check the return value of nvmem_add_cells() 2018-11-13 11:08:35 -08:00
of of: overlay: do not duplicate properties from overlay for new nodes 2019-02-06 17:30:16 +01:00
opp OPP: Use opp_table->regulators to verify no regulator case 2019-02-12 19:47:08 +01:00
oprofile
parisc
parport parport_pc: fix find_superio io compare code, should use equal test. 2019-03-23 20:10:05 +01:00
pci PCI: Blacklist power management of Gigabyte X299 DESIGNARE EX PCIe ports 2019-04-20 09:16:04 +02:00
pcmcia pcmcia: Implement CLKRUN protocol disabling for Ricoh bridges 2018-11-13 11:08:17 -08:00
perf perf/aux: Make perf_event accessible to setup_aux() 2019-04-05 22:33:11 +02:00
phy phy: sun4i-usb: Support set_mode to USB_HOST for non-OTG PHYs 2019-04-03 06:26:27 +02:00
pinctrl pinctrl: core: make sure strcmp() doesn't get a null parameter 2019-04-20 09:16:01 +02:00
platform platform/x86: Add Intel AtomISP2 dummy / power-management driver 2019-04-20 09:16:02 +02:00
pnp
power power: supply: charger-manager: Fix incorrect return value 2019-03-27 14:14:43 +09:00
powercap
pps
ps3
ptp ptp: Fix pass zero to ERR_PTR() in ptp_clock_register 2019-02-12 19:47:01 +01:00
pwm
rapidio
ras
regulator regulator: act8865: Fix act8600_sudcdc_voltage_ranges setting 2019-04-05 22:33:15 +02:00
remoteproc remoteproc: qcom: q6v5: Propagate EPROBE_DEFER 2018-11-13 11:08:52 -08:00
reset
rpmsg rpmsg: smd: fix memory leak on channel create 2018-11-13 11:08:55 -08:00
rtc rtc: m41t80: Correct alarm month range with RTC reads 2019-01-09 17:38:48 +01:00
s390 s390/qeth: fix race when initializing the IP address table 2019-05-04 09:20:13 +02:00
sbus drivers/sbus/char: add of_node_put() 2018-12-21 14:15:17 +01:00
scsi Revert "scsi: fcoe: clear FC_RP_STARTED flags when receiving a LOGO" 2019-04-27 09:36:36 +02:00
sfi
sh
siox
slimbus slimbus: ngd: mark PM functions as __maybe_unused 2018-12-19 19:19:49 +01:00
sn
soc soc/tegra: pmc: Drop locking from tegra_powergate_is_powered() 2019-04-20 09:16:03 +02:00
soundwire
spi spi: pxa2xx: Setup maximum supported DMA transfer length 2019-03-23 20:09:57 +01:00
spmi
ssb
staging staging: rtlwifi: Fix potential NULL pointer dereference of kzalloc 2019-05-04 09:20:17 +02:00
target scsi: target/iscsi: Avoid iscsit_release_commands_from_conn() deadlock 2019-03-23 20:09:59 +01:00
tc TC: Set DMA masks for devices 2018-11-13 11:08:51 -08:00
tee tee: optee: avoid possible double list_del() 2019-02-12 19:47:08 +01:00
thermal thermal/intel_powerclamp: fix truncated kthread name 2019-04-20 09:15:56 +02:00
thunderbolt thunderbolt: Prevent root port runtime suspend during NVM upgrade 2018-12-17 09:24:36 +01:00
tty serial: ar933x_uart: Fix build failure with disabled console 2019-05-04 09:20:13 +02:00
uio uio: Fix an Oops on load 2018-11-27 16:13:09 +01:00
usb usb: gadget: net2272: Fix net2272_dequeue() 2019-05-04 09:20:14 +02:00
uwb
vfio vfio/type1: Limit DMA mappings per container 2019-05-02 09:58:55 +02:00
vhost vhost: reject zero size iova range 2019-04-27 09:36:31 +02:00
video backlight: pwm_bl: Use gpiod_get_value_cansleep() to get initial state 2019-04-05 22:33:13 +02:00
virt vbox: fix link error with 'gcc -Og' 2019-02-12 19:46:59 +01:00
virtio virtio: Honour 'may_reduce_num' in vring_create_virtqueue 2019-04-17 08:38:52 +02:00
visorbus
vlynq
vme
w1 w1: omap-hdq: fix missing bus unregister at removal 2018-11-13 11:08:48 -08:00
watchdog watchdog: mt7621_wdt/rt2880_wdt: Fix compilation problem 2019-02-27 10:08:52 +01:00
xen xen/gntdev: Do not destroy context while dma-bufs are in use 2019-04-05 22:33:06 +02:00
zorro
Kconfig
Makefile