Laurent Vivier 67380639df virtio_console: allocate inbufs in add_port() only if it is needed ... commit d791cfcbf9 upstream. When we hot unplug a virtserialport and then try to hot plug again, it fails: (qemu) chardev-add socket,id=serial0,path=/tmp/serial0,server,nowait (qemu) device_add virtserialport,bus=virtio-serial0.0,nr=2,\ chardev=serial0,id=serial0,name=serial0 (qemu) device_del serial0 (qemu) device_add virtserialport,bus=virtio-serial0.0,nr=2,\ chardev=serial0,id=serial0,name=serial0 kernel error: virtio-ports vport2p2: Error allocating inbufs qemu error: virtio-serial-bus: Guest failure in adding port 2 for device \ virtio-serial0.0 This happens because buffers for the in_vq are allocated when the port is added but are not released when the port is unplugged. They are only released when virtconsole is removed (see a7a69ec0d8) To avoid the problem and to be symmetric, we could allocate all the buffers in init_vqs() as they are released in remove_vqs(), but it sounds like a waste of memory. Rather than that, this patch changes add_port() logic to ignore ENOSPC error in fill_queue(), which means queue has already been filled. Fixes: a7a69ec0d8 ("virtio_console: free buffers after reset") Cc: mst@redhat.com Cc: stable@vger.kernel.org Signed-off-by: Laurent Vivier <lvivier@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-12-01 09:16:10 +01:00
..
accessibility
acpi	ACPI / LPSS: Use acpi_lpss_* instead of acpi_subsys_* functions for hibernate	2019-11-24 08:21:07 +01:00
amba
android	android: binder: no outgoing transaction when thread todo has transaction	2019-11-20 18:46:42 +01:00
ata	ata: ep93xx: Use proper enums for directions	2019-11-24 08:20:10 +01:00
atm	Kconfig: Fix the reference to the IDT77105 Phy driver in the description of ATM_NICSTAR_USE_IDT77105	2019-09-21 07:16:57 +02:00
auxdisplay	auxdisplay: panel: need to delete scan_timer when misc_register fails in panel_attach	2019-09-06 10:21:56 +02:00
base	component: fix loop condition to call unbind() if bind() fails	2019-11-20 18:46:47 +01:00
bcma
block	nbd:fix memory leak in nbd_get_socket()	2019-12-01 09:16:09 +01:00
bluetooth	Bluetooth: btrsi: fix bt tx timeout issue	2019-11-20 18:47:42 +01:00
bus	bus: ti-sysc: Simplify cleanup upon failures in sysc_probe()	2019-09-21 07:16:51 +02:00
cdrom
char	virtio_console: allocate inbufs in add_port() only if it is needed	2019-12-01 09:16:10 +01:00
clk	clk: samsung: Use clk_hw API for calling clk framework from clk notifiers	2019-11-24 08:20:23 +01:00
clocksource	clocksource/drivers/sh_cmt: Fix clocksource width for 32-bit machines	2019-11-24 08:19:57 +01:00
connector
cpufreq	cpufreq: Avoid cpufreq_suspend() deadlock on system shutdown	2019-10-29 09:20:08 +01:00
cpuidle	cpuidle: menu: Fix wakeup statistics updates for polling state	2019-11-24 08:20:07 +01:00
crypto	crypto: mxs-dcp - Fix AES issues	2019-11-24 08:20:31 +01:00
dax	mm/huge_memory: fix vmf_insert_pfn_{pmd, pud}() crash, handle unaligned addresses	2019-05-22 07:37:40 +02:00
dca
devfreq	PM / devfreq: Fix static checker warning in try_then_request_governor	2019-11-24 08:21:07 +01:00
dio
dma	dmaengine: rcar-dmac: set scatter/gather max segment size	2019-11-24 08:20:30 +01:00
dma-buf	dma-buf/sw_sync: Synchronize signal vs syncpt free	2019-10-07 18:57:04 +02:00
edac	EDAC: Correct DIMM capacity unit symbol	2019-11-20 18:47:15 +01:00
eisa
extcon	extcon: cht-wc: Return from default case to avoid warnings	2019-11-20 18:45:26 +01:00
firewire
firmware	firmware: dell_rbu: Make payload memory uncachable	2019-11-20 18:47:41 +01:00
fmc
fpga	fpga: altera-ps-spi: Fix getting of optional confd gpio	2019-09-21 07:16:53 +02:00
fsi	fsi: scom: Don't abort operations for minor errors	2019-09-06 10:22:19 +02:00
gnss
gpio	gpio: max77620: Fixup debounce delays	2019-12-01 09:16:09 +01:00
gpu	msm/gpu/a6xx: Force of_dma_configure to setup DMA for GMU	2019-11-24 08:20:06 +01:00
hid	HID: intel-ish-hid: fix wrong error handling in ishtp_cl_alloc_tx_ring()	2019-11-12 19:20:54 +01:00
hsi
hv	vmbus: keep pointer to ring buffer page	2019-11-20 18:47:31 +01:00
hwmon	hwmon: (npcm-750-pwm-fan) Change initial pwm target to 255	2019-11-24 08:21:01 +01:00
hwspinlock
hwtracing	coresight: dynamic-replicator: Handle multiple connections	2019-11-20 18:47:29 +01:00
i2c	i2c: zx2967: use core to detect 'no zero length' quirk	2019-11-24 08:20:27 +01:00
ide
idle	x86/cpu: Sanitize FAM6_ATOM naming	2019-05-14 19:17:53 +02:00
iio	iio: dac: mcp4922: fix error handling in mcp4922_write_raw	2019-11-20 18:45:21 +01:00
infiniband	RDMA/hns: Limit the size of extend sge of sq	2019-11-24 08:20:04 +01:00
input	Input: silead - try firmware reload after unsuccessful resume	2019-11-24 08:20:28 +01:00
iommu	iommu/arm-smmu-v3: Fix unexpected CMD_SYNC timeout	2019-11-24 08:19:30 +01:00
ipack
irqchip	irqchip/irq-mvebu-icu: Fix wrong private data retrieval	2019-11-24 08:19:40 +01:00
isdn	net: use skb_queue_empty_lockless() in poll() handlers	2019-11-10 11:27:48 +01:00
leds	led: triggers: Fix a memory leak bug	2019-10-05 13:09:45 +02:00
lightnvm	lightnvm: pblk: consider max hw sectors supported for max_write_pgs	2019-11-24 08:20:52 +01:00
macintosh
mailbox	mbox: qcom: add APCS child device for QCS404	2019-10-07 18:57:02 +02:00
mcb
md	bcache: recal cached_dev_sectors on detach	2019-11-24 08:20:38 +01:00
media	media: venus: vdec: fix decoded data size	2019-11-24 08:20:49 +01:00
memory	memory: tegra: Fix integer overflow on tick value calculation	2019-05-25 18:23:32 +02:00
memstick	memstick: jmb38x_ms: Fix an error handling path in 'jmb38x_ms_probe()'	2019-10-29 09:20:07 +01:00
message
mfd	mfd: ti_am335x_tscadc: Keep ADC interface on if child is wakeup capable	2019-11-24 08:20:46 +01:00
misc	misc: cxl: Fix possible null pointer dereference	2019-11-24 08:21:03 +01:00
mmc	mmc: tmio: fix SCC error handling to avoid false positive CRC error	2019-11-24 08:21:08 +01:00
mtd	mtd: devices: m25p80: Make sure WRITE_EN is issued before each write	2019-11-24 08:20:41 +01:00
mux
net	net/mlx5: Fix auto group size calculation	2019-12-01 09:16:08 +01:00
nfc	NFC: st21nfca: fix double free	2019-11-12 19:20:30 +01:00
ntb	ntb: point to right memory window index	2019-10-11 18:21:18 +02:00
nubus
nvdimm	libnvdimm/region: Initialize bad block for volatile namespaces	2019-10-11 18:21:20 +02:00
nvme	lightnvm: do no update csecs and sos on 1.2	2019-11-24 08:20:51 +01:00
nvmem	nvmem: core: return error code instead of NULL from nvmem_device_get	2019-11-20 18:46:31 +01:00
of	of/unittest: Fix I2C bus unit-address error	2019-11-20 18:47:00 +01:00
opp	OPP: Return error on error from dev_pm_opp_get_opp_count()	2019-11-24 08:20:06 +01:00
oprofile
parisc	parisc: Disable HP HSC-PCI Cards to prevent kernel crash	2019-10-05 13:10:04 +02:00
parport	parport: Fix mem leak in parport_register_dev_model	2019-06-25 11:35:55 +08:00
pci	PCI/ERR: Run error recovery callbacks for all affected devices	2019-11-20 18:47:39 +01:00
pcmcia
perf	drivers/perf: arm_pmu: Fix failure path in PM notifier	2019-08-06 19:06:55 +02:00
phy	phy: lantiq: Fix compile warning	2019-11-20 18:47:35 +01:00
pinctrl	pinctrl: gemini: Fix up TVC clock group	2019-11-24 08:20:58 +01:00
platform	platform/x86: mlx-platform: Properly use mlxplat_mlxcpld_msn201x_items	2019-11-24 08:20:39 +01:00
pnp
power	power: supply: twl4030_charger: disable eoc interrupt on linear charge	2019-11-20 18:47:01 +01:00
powercap	x86/cpu: Sanitize FAM6_ATOM naming	2019-05-14 19:17:53 +02:00
pps	drivers/pps/pps.c: clear offset flags in PPS_SETPARAMS ioctl	2019-08-04 09:30:56 +02:00
ps3
ptp
pwm	pwm: stm32-lp: Add check in case requested period cannot be achieved	2019-10-11 18:21:17 +02:00
rapidio	drivers/rapidio/devices/rio_mport_cdev.c: NUL terminate some strings	2019-08-06 19:06:52 +02:00
ras	RAS/CEC: Fix pfn insertion	2019-07-26 09:14:05 +02:00
regulator	regulator: pfuze100-regulator: Variable "val" in pfuze100_regulator_probe() could be uninitialized	2019-11-10 11:27:15 +01:00
remoteproc	remoteproc: qcom: q6v5: Fix a race condition on fatal crash	2019-11-24 08:20:29 +01:00
reset	reset: Fix potential use-after-free in __of_reset_control_get()	2019-11-24 08:20:38 +01:00
rpmsg	rpmsg: glink: smem: Support rx peak for size less than 4 bytes	2019-11-24 08:20:05 +01:00
rtc	rtc: armada38x: fix possible race condition	2019-11-20 18:47:52 +01:00
s390	s390/kasan: avoid instrumentation of early C code	2019-11-24 08:20:44 +01:00
sbus
scsi	scsi: arcmsr: clean up clang warning on extraneous parentheses	2019-11-24 08:20:59 +01:00
sfi
sh
siox
slimbus	silmbus: ngd: register controller after power up.	2019-11-20 18:47:30 +01:00
sn
soc	soc: fsl: bman_portals: defer probe after bman's probe	2019-11-24 08:20:28 +01:00
soundwire	soundwire: intel: Fix uninitialized adev deref	2019-11-20 18:45:22 +01:00
spi	spi: rockchip: initialize dma_slave_config properly	2019-11-24 08:21:05 +01:00
spmi
ssb	ssb: Fix possible NULL pointer dereference in ssb_host_pcmcia_exit	2019-05-31 06:46:04 -07:00
staging	media: imx: work around false-positive warning, again	2019-11-20 18:47:16 +01:00
target	scsi: target: core: Do not overwrite CDB byte 1	2019-11-10 11:27:28 +01:00
tc
tee	tee: optee: add missing of_node_put after of_device_is_available	2019-11-24 08:19:08 +01:00
thermal	thermal_hwmon: Sanitize thermal_zone type	2019-10-11 18:21:19 +02:00
thunderbolt	thunderbolt: Use 32-bit writes when writing ring producer/consumer	2019-11-06 13:06:12 +01:00
tty	tty: serial: qcom_geni_serial: Fix serial when not used as console	2019-11-20 18:46:54 +01:00
uio	vmbus: keep pointer to ring buffer page	2019-11-20 18:47:31 +01:00
usb	usb: dwc2: disable power_down on rockchip devices	2019-11-24 08:20:16 +01:00
uwb
vfio	vfio/pci: Mask buggy SR-IOV VF INTx support	2019-11-20 18:47:32 +01:00
vhost	vhost/vsock: split packets to send using multiple buffers	2019-12-01 09:16:08 +01:00
video	backlight: lm3639: Unconditionally call led_classdev_unregister	2019-11-24 08:20:45 +01:00
virt	virt: vbox: fix memory leak in hgcm_call_preprocess_linaddr	2019-11-06 13:06:04 +01:00
virtio	virtio_pci: fix a NULL pointer reference in vp_del_vqs	2019-05-10 17:54:08 +02:00
visorbus
vlynq
vme
w1	w1: fix the resume command API	2019-05-31 06:46:14 -07:00
watchdog	watchdog: w83627hf_wdt: Support NCT6796D, NCT6797D, NCT6798D	2019-11-24 08:19:43 +01:00
xen	xen/pci: reserve MCFG areas earlier	2019-10-11 18:21:13 +02:00
zorro
Kconfig
Makefile