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Xiaomeng Tong 8d37abe2c0 stm: ltdc: fix two incorrect NULL checks on list iterator 
commit 2e6c86be0e upstream.

The two bugs are here:
	if (encoder) {
	if (bridge && bridge->timings)

The list iterator value 'encoder/bridge' will *always* be set and
non-NULL by drm_for_each_encoder()/list_for_each_entry(), so it is
incorrect to assume that the iterator value will be NULL if the
list is empty or no element is found.

To fix the bug, use a new variable '*_iter' as the list iterator,
while use the old variable 'encoder/bridge' as a dedicated pointer
to point to the found element.

Cc: stable@vger.kernel.org
Fixes: 99e360442f ("drm/stm: Fix bus_flags handling")
Signed-off-by: Xiaomeng Tong <xiam0nd.tong@gmail.com>
Acked-by: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
Signed-off-by: Philippe Cornu <philippe.cornu@foss.st.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220327055355.3808-1-xiam0nd.tong@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-09 10:26:28 +02:00
..
accessibility
acpi ACPI: property: Release subnode properties with data nodes 2022-06-09 10:26:19 +02:00
amba
android binder: Address corner cases in deferred copy and fixup 2022-05-09 09:16:14 +02:00
ata ata: pata_marvell: Check the 'bmdma_addr' beforing reading 2022-04-27 14:41:11 +02:00
atm atm: eni: Add check for dma_map_single 2022-03-15 11:01:52 +00:00
auxdisplay auxdisplay: lcd2s: Use proper API to free the instance of charlcd object 2022-03-03 00:30:31 +01:00
base drivers/base/memory: fix an unlikely reference counting issue in __add_memory_block() 2022-06-09 10:26:05 +02:00
bcma
block virtio_blk: fix the discard_granularity and discard_alignment queue limits 2022-06-09 10:25:46 +02:00
bluetooth Bluetooth: btmtksdio: fix use-after-free at btmtksdio_recv_event 2022-06-09 10:25:52 +02:00
bus bus: sunxi-rsb: Fix the return value of sunxi_rsb_device_create() 2022-05-09 09:16:23 +02:00
cdrom
char hwrng: omap3-rom - fix using wrong clk_disable() in omap_rom_rng_runtime_resume() 2022-06-09 10:26:09 +02:00
clk clk: at91: generated: consider range when calculating best rate 2022-05-25 09:59:08 +02:00
clocksource clocksource: acpi_pm: fix return value of __setup handler 2022-04-08 13:57:38 +02:00
comedi
connector
counter counter: Stop using dev_get_drvdata() to get the counter device 2022-03-15 19:24:13 +01:00
cpufreq cpufreq: mediatek: Unregister platform device on exit 2022-06-09 10:26:12 +02:00
cpuidle cpuidle: PSCI: Improve support for suspend-to-RAM for PSCI OSI mode 2022-06-09 10:25:21 +02:00
crypto crypto: sun8i-ss - handle zero sized sg 2022-06-09 10:26:07 +02:00
cxl cxl/port: Hold port reference until decoder release 2022-04-08 13:58:07 +02:00
dax dax: make sure inodes are flushed before destroy cache 2022-04-08 13:58:07 +02:00
dca
devfreq PM / devfreq: rk3399_dmc: Disable edev on remove() 2022-06-09 10:25:32 +02:00
dio
dma dmaengine: stm32-mdma: fix chan initialization in stm32_mdma_irq_handler() 2022-06-09 10:26:13 +02:00
dma-buf dma-buf: ensure unique directory name for dmabuf stats 2022-05-25 09:59:04 +02:00
edac EDAC/dmc520: Don't print an error for each unconfigured interrupt line 2022-06-09 10:25:40 +02:00
eisa
extcon
firewire firewire: core: extend card->lock in fw_core_handle_bus_reset 2022-05-12 12:32:20 +02:00
firmware firmware: arm_ffa: Remove incorrect assignment of driver_data 2022-06-09 10:26:05 +02:00
fpga
fsi fsi: Aspeed: Fix a potential double free 2022-04-08 13:58:24 +02:00
gnss
gpio gpio: sim: Use correct order for the parameters of devm_kcalloc() 2022-06-09 10:26:10 +02:00
gpu stm: ltdc: fix two incorrect NULL checks on list iterator 2022-06-09 10:26:28 +02:00
greybus greybus: svc: fix an error handling bug in gb_svc_hello() 2022-04-08 13:57:16 +02:00
hid HID: amd_sfh: Modify the hid name 2022-06-09 10:25:49 +02:00
hsi
hv Drivers: hv: vmbus: Fix handling of messages with transaction ID of zero 2022-06-09 10:26:03 +02:00
hwmon hwmon: (pmbus) Check PEC support before reading other registers 2022-06-09 10:25:57 +02:00
hwspinlock
hwtracing coresight: syscfg: Fix memleak on registration failure in cscfg_create_device 2022-04-08 13:57:14 +02:00
i2c i2c: rcar: fix PM ref counts in probe error paths 2022-06-09 10:26:14 +02:00
i3c
idle
iio iio:dac:ad3552r: Fix an IS_ERR() vs NULL check 2022-05-09 09:16:18 +02:00
infiniband RDMA/hfi1: Fix potential integer multiplication overflow errors 2022-06-09 10:26:25 +02:00
input Input: stmfts - do not leave device disabled in stmfts_input_open 2022-06-09 10:26:11 +02:00
interconnect interconnect: Restore sync state by ignoring ipa-virt in provider count 2022-05-18 10:28:18 +02:00
iommu iommu/dma: Fix iova map result check bug 2022-06-09 10:26:27 +02:00
ipack
irqchip irqchip: irq-xtensa-mx: fix initial IRQ affinity 2022-06-09 10:26:26 +02:00
isdn isdn: hfcpci: check the return value of dma_set_mask() in setup_hw() 2022-03-07 11:27:12 +00:00
leds
macintosh macintosh: via-pmu and via-cuda need RTC_LIB 2022-06-09 10:26:09 +02:00
mailbox mailbox: forward the hrtimer if not queued and under a lock 2022-06-09 10:26:10 +02:00
mcb
md md: fix an incorrect NULL check in md_reload_sb 2022-06-09 10:26:24 +02:00
media media: coda: Add more H264 levels for CODA960 2022-06-09 10:26:25 +02:00
memory memory: samsung: exynos5422-dmc: Avoid some over memory allocation 2022-06-09 10:25:59 +02:00
memstick memstick/mspro_block: fix handling of read-only devices 2022-04-08 13:58:36 +02:00
message
mfd mfd: davinci_voicecodec: Fix possible null-ptr-deref davinci_vc_probe() 2022-06-09 10:26:10 +02:00
misc misc: ocxl: fix possible double free in ocxl_file_register_afu 2022-06-09 10:26:02 +02:00
mmc mmc: core: Allows to override the timeout value for ioctl() path 2022-06-09 10:26:25 +02:00
most
mtd mtd: cfi_cmdset_0002: Use chip_ready() for write on S29GL064N 2022-06-09 10:26:25 +02:00
mux
net carl9170: tx: fix an incorrect use of list iterator 2022-06-09 10:26:28 +02:00
nfc NFC: hci: fix sleep in atomic context bugs in nfc_hci_hcp_message_tx 2022-06-09 10:25:56 +02:00
ntb
nubus
nvdimm mce: fix set_mce_nospec to always unmap the whole page 2022-06-09 10:26:08 +02:00
nvme nvme: set dma alignment to dword 2022-06-09 10:25:53 +02:00
nvmem
of of: overlay: do not break notify on NOTIFY_{OK|STOP} 2022-06-09 10:25:43 +02:00
opp OPP: call of_node_put() on error path in _bandwidth_supported() 2022-06-09 10:26:11 +02:00
parisc parisc: Fix CPU affinity for Lasi, WAX and Dino chips 2022-04-13 19:27:26 +02:00
parport
pci PCI: qcom: Fix unbalanced PHY init on probe errors 2022-06-09 10:26:20 +02:00
pcmcia
perf arm_pmu: Validate single/group leader events 2022-04-27 14:41:15 +02:00
phy phy: amlogic: fix error path in phy_g12a_usb3_pcie_probe() 2022-05-09 09:16:20 +02:00
pinctrl pinctrl: apple: Use a raw spinlock for the regmap 2022-06-09 10:26:10 +02:00
platform MIPS: Loongson: Use hwmon_device_register_with_groups() to register hwmon 2022-06-09 10:26:12 +02:00
pnp
power power: supply: axp288_fuel_gauge: Use acpi_quirk_skip_acpi_ac_and_battery() 2022-04-13 19:27:18 +02:00
powercap powercap/dtpm_cpu: Reset per_cpu variable in the release function 2022-04-08 13:58:37 +02:00
pps pps: clients: gpio: Propagate return value from pps_gpio_probe 2022-04-08 13:58:24 +02:00
ps3
ptp ptp: ocp: have adjtime handle negative delta_ns correctly 2022-05-25 09:59:07 +02:00
pwm pwm: lpc18xx-sct: Initialize driver data and hardware before pwmchip_add() 2022-04-08 13:58:23 +02:00
rapidio
ras
regulator regulator: scmi: Fix refcount leak in scmi_regulator_probe 2022-06-09 10:25:54 +02:00
remoteproc remoteproc: qcom_q6v5_mss: Fix some leaks in q6v5_alloc_memory_region 2022-04-08 13:58:27 +02:00
reset reset: tegra-bpmp: Restore Handle errors in BPMP response 2022-04-27 14:41:06 +02:00
rpmsg
rtc rtc: mc146818-lib: Fix the AltCentury for AMD platforms 2022-05-25 09:59:01 +02:00
s390 s390/stp: clock_delta should be signed 2022-06-09 10:26:21 +02:00
sbus
scsi scsi: ufs: qcom: Add a readl() to make sure ref_clk gets enabled 2022-06-09 10:26:21 +02:00
sh
siox
slimbus slimbus: qcom: Fix IRQ check in qcom_slim_probe 2022-05-18 10:28:20 +02:00
soc soc: bcm: Check for NULL return of devm_kzalloc() 2022-06-09 10:26:03 +02:00
soundwire ASoC: Intel: sof_sdw: fix quirks for 2022 HP Spectre x360 13" 2022-04-08 13:58:45 +02:00
spi spi: spi-fsl-qspi: check return value after calling platform_get_resource_byname() 2022-06-09 10:25:48 +02:00
spmi
ssb
staging staging: r8188eu: prevent ->Ssid overflow in rtw_wx_set_scan() 2022-06-09 10:26:20 +02:00
target target: remove an incorrect unmap zeroes data deduction 2022-06-09 10:25:40 +02:00
tc
tee tee: optee: add missing mutext_destroy in optee_ffa_probe 2022-05-09 09:16:17 +02:00
thermal thermal: devfreq_cooling: use local ops instead of global ops 2022-06-09 10:26:26 +02:00
thunderbolt
tty tty: goldfish: Introduce gf_ioread32()/gf_iowrite32() 2022-06-09 10:26:19 +02:00
uio
usb xhci: Allow host runtime PM as default for Intel Alder Lake N xHCI 2022-06-09 10:25:15 +02:00
vdpa vdpa/mlx5: Use consistent RQT size 2022-05-25 09:59:11 +02:00
vfio vfio/pci: Fix vf_token mechanism when device-specific VF drivers are used 2022-04-20 09:36:18 +02:00
vhost Fix double fget() in vhost_net_set_backend() 2022-05-25 09:59:03 +02:00
video video: fbdev: vesafb: Fix a use-after-free due early fb_info cleanup 2022-06-09 10:26:15 +02:00
virt virt: acrn: fix a memory leak in acrn_dev_ioctl() 2022-04-08 13:58:30 +02:00
virtio virtio: use virtio_device_ready() in virtio_device_restore() 2022-04-08 13:58:57 +02:00
visorbus
vlynq
vme
w1 w1: w1_therm: fixes w1_seq for ds28ea00 sensors 2022-04-13 19:27:24 +02:00
watchdog Watchdog: sp5100_tco: Enable Family 17h+ CPUs 2022-05-25 09:58:58 +02:00
xen xen/gnttab: fix gnttab_end_foreign_access() without page specified 2022-03-07 09:48:55 +01:00
zorro
Kconfig
Makefile