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Oleksandr Andrushchenko 67f8b390b1 drm/xen-front: Fix misused IS_ERR_OR_NULL checks
[ Upstream commit 14dee05861 ]

The patch c575b7eeb89f: "drm/xen-front: Add support for Xen PV
display frontend" from Apr 3, 2018, leads to the following static
checker warning:

	drivers/gpu/drm/xen/xen_drm_front_gem.c:140 xen_drm_front_gem_create()
	warn: passing zero to 'ERR_CAST'

drivers/gpu/drm/xen/xen_drm_front_gem.c
   133  struct drm_gem_object *xen_drm_front_gem_create(struct drm_device *dev,
   134                                                  size_t size)
   135  {
   136          struct xen_gem_object *xen_obj;
   137
   138          xen_obj = gem_create(dev, size);
   139          if (IS_ERR_OR_NULL(xen_obj))
   140                  return ERR_CAST(xen_obj);

Fix this and the rest of misused places with IS_ERR_OR_NULL in the
driver.

Fixes:  c575b7eeb89f: "drm/xen-front: Add support for Xen PV display frontend"

Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200813062113.11030-3-andr2000@gmail.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-09-03 11:26:50 +02:00
..
accessibility
acpi ACPICA: Do not increment operation_region reference counts for field units 2020-08-19 08:16:05 +02:00
amba
android binder: Prevent context manager from incrementing ref 0 2020-08-11 15:33:35 +02:00
ata ata/libata: Fix usage of page address by page_address in ata_scsi_mode_select_xlat function 2020-06-30 15:37:03 -04:00
atm atm: fix atm_dev refcnt leaks in atmtcp_remove_persistent 2020-08-11 15:33:38 +02:00
auxdisplay
base driver core: Avoid binding drivers to dead devices 2020-08-21 13:05:26 +02:00
bcma
block loop: be paranoid on exit and prevent new additions / removals 2020-08-19 08:15:59 +02:00
bluetooth Bluetooth: hci_serdev: Only unregister device if it was registered 2020-08-19 08:16:16 +02:00
bus bus: ti-sysc: Add missing quirk flags for usb_host_hs 2020-08-19 08:16:00 +02:00
cdrom
char tpm: Unify the mismatching TPM space buffer sizes 2020-08-19 08:16:27 +02:00
clk clk: bcm2835: Do not use prediv with bcm2711's PLLs 2020-08-21 13:05:35 +02:00
clocksource arm64: arch_timer: Disable the compat vdso for cores affected by ARM64_WORKAROUND_1418040 2020-07-22 09:32:51 +02:00
connector
counter counter: 104-quad-8: Add lock guards - generic interface 2020-05-02 08:48:44 +02:00
cpufreq cpufreq: intel_pstate: Fix cpuinfo_max_freq when MSR_TURBO_RATIO_LIMIT is 0 2020-08-26 10:40:56 +02:00
cpuidle cpuidle: Fix three reference count leaks 2020-06-22 09:31:10 +02:00
crypto crypto: caam - Remove broken arc4 support 2020-08-21 13:05:32 +02:00
dax device-dax: don't leak kernel memory to user space after unloading kmem 2020-05-27 17:46:48 +02:00
dca
devfreq PM / devfreq: rk3399_dmc: Fix kernel oops when rockchip,pmu is absent 2020-09-03 11:26:50 +02:00
dio
dma dmaengine: ioat setting ioat timeout as module parameter 2020-07-29 10:18:37 +02:00
dma-buf dmabuf: use spinlock to access dmabuf->name 2020-07-29 10:18:29 +02:00
edac EDAC/ie31200: Fallback if host bridge device is already initialized 2020-09-03 11:26:48 +02:00
eisa
extcon extcon: adc-jack: Fix an error handling path in 'adc_jack_probe()' 2020-06-24 17:50:36 +02:00
firewire
firmware efi: add missed destroy_workqueue when efisubsys_init fails 2020-08-26 10:41:07 +02:00
fpga fpga: dfl: fix bug in port reset handshake 2020-07-29 10:18:31 +02:00
fsi
gnss gnss: sirf: fix error return code in sirf_probe() 2020-06-22 09:31:20 +02:00
gpio gpio: arizona: put pm_runtime in case of failure 2020-07-29 10:18:26 +02:00
gpu drm/xen-front: Fix misused IS_ERR_OR_NULL checks 2020-09-03 11:26:50 +02:00
greybus
hid HID: quirks: add NOGET quirk for Logitech GROUP 2020-09-03 11:26:46 +02:00
hsi
hv Drivers: hv: vmbus: Ignore CHANNELMSG_TL_CONNECT_RESULT(23) 2020-08-11 15:33:38 +02:00
hwmon hwmon: (scmi) Fix potential buffer overflow in scmi_hwmon_probe() 2020-07-29 10:18:39 +02:00
hwspinlock
hwtracing coresight: tmc: Fix TMC mode read in tmc_read_unprepare_etb() 2020-08-19 08:16:14 +02:00
i2c i2c: iproc: fix race between client unreg and isr 2020-08-21 13:05:38 +02:00
i3c
ide ide: serverworks: potential overflow in svwks_set_pio_mode() 2020-02-24 08:36:53 +01:00
idle
iio iio: dac: ad5592r: fix unbalanced mutex unlocks in ad5592r_read_raw() 2020-08-21 13:05:24 +02:00
infiniband RDMA/bnxt_re: Do not add user qps to flushlist 2020-08-26 10:41:05 +02:00
input Input: psmouse - add a newline when printing 'proto' by sysfs 2020-08-26 10:40:55 +02:00
interconnect
iommu iommu/iova: Don't BUG on invalid PFNs 2020-09-03 11:26:43 +02:00
ipack ipack: tpci200: fix error return code in tpci200_register() 2020-05-27 17:46:47 +02:00
irqchip genirq/affinity: Make affinity setting if activated opt-in 2020-08-21 13:05:20 +02:00
isdn
leds leds: core: Flush scheduled work for system suspend 2020-08-19 08:16:11 +02:00
lightnvm
macintosh macintosh/via-macii: Access autopoll_devs when inside lock 2020-08-19 08:16:15 +02:00
mailbox mailbox: zynqmp-ipi: Fix NULL vs IS_ERR() check in zynqmp_ipi_mbox_probe() 2020-06-24 17:50:36 +02:00
mcb
md bcache: avoid nr_stripes overflow in bcache_device_init() 2020-08-26 10:40:48 +02:00
media media: davinci: vpif_capture: fix potential double free 2020-09-03 11:26:48 +02:00
memory
memstick
message scsi: mptscsih: Fix read sense data size 2020-07-16 08:16:36 +02:00
mfd mfd: intel-lpss: Add Intel Tiger Lake PCH-H PCI IDs 2020-09-03 11:26:43 +02:00
misc cxl: Fix kobject memleak 2020-08-19 08:16:08 +02:00
mmc mmc: renesas_sdhi_internal_dmac: clean up the code for dma complete 2020-08-21 13:05:32 +02:00
mtd mtd: rawnand: fsl_upm: Remove unused mtd var 2020-08-21 13:05:30 +02:00
mux
net Revert "ath10k: fix DMA related firmware crashes on multiple devices" 2020-09-03 11:26:49 +02:00
nfc nfc: s3fwrn5: add missing release on skb in s3fwrn5_recv_frame 2020-08-05 09:59:50 +02:00
ntb NTB: perf: Fix race condition when run with ntb_test 2020-06-24 17:50:41 +02:00
nubus
nvdimm libnvdimm/security: ensure sysfs poll thread woke up and fetch updated attr 2020-08-21 13:05:35 +02:00
nvme nvme-multipath: do not fall back to __nvme_find_path() for non-optimized paths 2020-08-19 08:15:59 +02:00
nvmem nvmem: qfprom: remove incorrect write support 2020-06-10 20:24:57 +02:00
of of: of_mdio: Correct loop scanning logic 2020-07-22 09:32:55 +02:00
opp opp: Enable resources again if they were disabled earlier 2020-08-26 10:40:53 +02:00
oprofile
parisc parisc: mask out enable and reserved bits from sba imask 2020-08-19 08:16:26 +02:00
parport
pci PCI: Fix pci_create_slot() reference count leak 2020-09-03 11:26:45 +02:00
pcmcia
perf drivers/perf: Prevent forced unbinding of PMU drivers 2020-07-29 10:18:40 +02:00
phy phy: armada-38x: fix NETA lockup when repeatedly switching speeds 2020-08-19 08:16:14 +02:00
pinctrl pinctrl: ingenic: Properly detect GPIO direction when configured for IRQ 2020-08-21 13:05:29 +02:00
platform platform/chrome: cros_ec_ishtp: Fix a double-unlock issue 2020-08-21 13:05:30 +02:00
pnp
power power: supply: check if calc_soc succeeded in pm860x_init_battery 2020-08-19 08:16:16 +02:00
powercap
pps
ps3
ptp
pwm pwm: bcm-iproc: handle clk_get_rate() return 2020-08-21 13:05:34 +02:00
rapidio rapidio: fix an error in get_user_pages_fast() error handling 2020-05-27 17:46:48 +02:00
ras
regulator regulator: fix memory leak on error path of regulator_register() 2020-08-19 08:15:57 +02:00
remoteproc remoteproc: qcom_q6v5_mss: Validate modem blob firmware size before load 2020-08-21 13:05:29 +02:00
reset reset: uniphier: Add SCSSI reset control for each channel 2020-02-24 08:36:41 +01:00
rpmsg
rtc rtc: goldfish: Enable interrupt in set_alarm() when necessary 2020-08-26 10:40:54 +02:00
s390 scsi: zfcp: Fix use-after-free in request timeout handlers 2020-08-26 10:40:52 +02:00
sbus
scsi scsi: fcoe: Memory leak fix in fcoe_sysfs_fcf_del() 2020-09-03 11:26:47 +02:00
sfi
sh
siox
slimbus slimbus: core: Fix mismatch in of_node_get/put 2020-07-22 09:33:08 +02:00
soc soc: qcom: rpmh-rsc: Set suppress_bind_attrs flag 2020-08-19 08:15:59 +02:00
soundwire soundwire: intel: fix memory leak with devm_kasprintf 2020-07-22 09:33:00 +02:00
spi spi: stm32: fixes suspend/resume management 2020-08-26 10:40:59 +02:00
spmi spmi: pmic-arb: Set lockdep class for hierarchical irq domains 2020-02-19 19:53:07 +01:00
ssb
staging staging: rtl8192u: fix a dubious looking mask before a shift 2020-08-19 08:16:13 +02:00
target scsi: target: Fix xcopy sess release leak 2020-09-03 11:26:44 +02:00
tc
tee tee: optee: Fix compilation issue with nommu 2020-02-05 21:22:49 +00:00
thermal thermal: ti-soc-thermal: Fix reversed condition in ti_thermal_expose_sensor() 2020-08-19 08:16:14 +02:00
thunderbolt thunderbolt: Prevent crash if non-active NVMem file is read 2020-02-28 17:22:13 +01:00
tty vt: Reject zero-sized screen buffer size. 2020-07-29 10:18:43 +02:00
uio uio_pdrv_genirq: fix use without device tree and no interrupt 2020-07-22 09:33:13 +02:00
usb usb: cdns3: gadget: always zeroed TRB buffer when enable endpoint 2020-09-03 11:26:49 +02:00
vfio vfio/type1: Add proper error unwind for vfio_iommu_replay() 2020-08-26 10:41:03 +02:00
vhost vhost/scsi: fix up req type endian-ness 2020-08-05 09:59:42 +02:00
video omapfb: fix multiple reference count leaks due to pm_runtime_get_sync 2020-09-03 11:26:45 +02:00
virt virt: vbox: Fix guest capabilities mask check 2020-07-22 09:33:11 +02:00
virtio virtio_ring: Avoid loop when vq is broken in virtqueue_poll 2020-08-26 10:40:57 +02:00
visorbus visorbus: fix uninitialized variable access 2020-02-24 08:36:47 +01:00
vlynq
vme vme: bridges: reduce stack usage 2020-02-24 08:36:48 +01:00
w1 w1: omap-hdq: cleanup to add missing newline for some dev_dbg 2020-06-22 09:31:26 +02:00
watchdog watchdog: initialize device before misc_register 2020-08-21 13:05:36 +02:00
xen xen: don't reschedule in preemption off sections 2020-08-26 10:41:07 +02:00
zorro
Kconfig
Makefile