Merge 4.9.129 into android-4.9

Changes in 4.9.129
	be2net: Fix memory leak in be_cmd_get_profile_config()
	rds: fix two RCU related problems
	net/mlx5: Fix use-after-free in self-healing flow
	net/mlx5: Fix debugfs cleanup in the device init/remove flow
	iommu/arm-smmu-v3: sync the OVACKFLG to PRIQ consumer register
	ALSA: msnd: Fix the default sample sizes
	ALSA: usb-audio: Fix multiple definitions in AU0828_DEVICE() macro
	xfrm: fix 'passing zero to ERR_PTR()' warning
	gfs2: Special-case rindex for gfs2_grow
	clk: imx6ul: fix missing of_node_put()
	clk: clk-fixed-factor: Clear OF_POPULATED flag in case of failure
	kbuild: add .DELETE_ON_ERROR special target
	media: tw686x: Fix oops on buffer alloc failure
	dmaengine: pl330: fix irq race with terminate_all
	MIPS: ath79: fix system restart
	media: videobuf2-core: check for q->error in vb2_core_qbuf()
	IB/rxe: Drop QP0 silently
	mtd/maps: fix solutionengine.c printk format warnings
	perf test: Fix subtest number when showing results
	gfs2: Don't reject a supposedly full bitmap if we have blocks reserved
	fbdev: omapfb: off by one in omapfb_register_client()
	video: goldfishfb: fix memory leak on driver remove
	fbdev/via: fix defined but not used warning
	perf powerpc: Fix callchain ip filtering when return address is in a register
	video: fbdev: pxafb: clear allocated memory for video modes
	fbdev: Distinguish between interlaced and progressive modes
	ARM: exynos: Clear global variable on init error path
	perf powerpc: Fix callchain ip filtering
	powerpc/powernv: opal_put_chars partial write fix
	MIPS: jz4740: Bump zload address
	mac80211: restrict delayed tailroom needed decrement
	Smack: Fix handling of IPv4 traffic received by PF_INET6 sockets
	wan/fsl_ucc_hdlc: use IS_ERR_VALUE() to check return value of qe_muram_alloc
	efi/arm: preserve early mapping of UEFI memory map longer for BGRT
	nfp: avoid buffer leak when FW communication fails
	xen-netfront: fix queue name setting
	arm64: dts: qcom: db410c: Fix Bluetooth LED trigger
	ARM: dts: qcom: msm8974-hammerhead: increase load on l20 for sdhci
	s390/qeth: fix race in used-buffer accounting
	s390/qeth: reset layer2 attribute on layer switch
	platform/x86: toshiba_acpi: Fix defined but not used build warnings
	KVM: arm/arm64: Fix vgic init race
	drivers/base: stop new probing during shutdown
	dmaengine: mv_xor_v2: kill the tasklets upon exit
	crypto: sharah - Unregister correct algorithms for SAHARA 3
	xen-netfront: fix warn message as irq device name has '/'
	RDMA/cma: Protect cma dev list with lock
	pstore: Fix incorrect persistent ram buffer mapping
	xen/netfront: fix waiting for xenbus state change
	IB/ipoib: Avoid a race condition between start_xmit and cm_rep_handler
	mmc: omap_hsmmc: fix wakeirq handling on removal
	Tools: hv: Fix a bug in the key delete code
	misc: hmc6352: fix potential Spectre v1
	usb: Don't die twice if PCI xhci host is not responding in resume
	mei: ignore not found client in the enumeration
	USB: Add quirk to support DJI CineSSD
	usb: uas: add support for more quirk flags
	usb: Avoid use-after-free by flushing endpoints early in usb_set_interface()
	usb: host: u132-hcd: Fix a sleep-in-atomic-context bug in u132_get_frame()
	USB: add quirk for WORLDE Controller KS49 or Prodipe MIDI 49C USB controller
	usb: gadget: udc: renesas_usb3: fix maxpacket size of ep0
	USB: net2280: Fix erroneous synchronization change
	USB: serial: io_ti: fix array underflow in completion handler
	usb: misc: uss720: Fix two sleep-in-atomic-context bugs
	USB: serial: ti_usb_3410_5052: fix array underflow in completion handler
	USB: yurex: Fix buffer over-read in yurex_write()
	usb: cdc-wdm: Fix a sleep-in-atomic-context bug in service_outstanding_interrupt()
	Revert "cdc-acm: implement put_char() and flush_chars()"
	cifs: prevent integer overflow in nxt_dir_entry()
	CIFS: fix wrapping bugs in num_entries()
	perf/core: Force USER_DS when recording user stack data
	NFSv4.1 fix infinite loop on I/O.
	binfmt_elf: Respect error return from `regset->active'
	audit: fix use-after-free in audit_add_watch
	mtdchar: fix overflows in adjustment of `count`
	evm: Don't deadlock if a crypto algorithm is unavailable
	MIPS: loongson64: cs5536: Fix PCI_OHCI_INT_REG reads
	configfs: fix registered group removal
	efi/esrt: Only call efi_mem_reserve() for boot services memory
	ARM: hisi: handle of_iomap and fix missing of_node_put
	ARM: hisi: fix error handling and missing of_node_put
	ARM: hisi: check of_iomap and fix missing of_node_put
	gpu: ipu-v3: csi: pass back mbus_code_to_bus_cfg error codes
	mmc: tegra: prevent HS200 on Tegra 3
	mmc: sdhci: do not try to use 3.3V signaling if not supported
	drm/nouveau: tegra: Detach from ARM DMA/IOMMU mapping
	parport: sunbpp: fix error return code
	coresight: Handle errors in finding input/output ports
	coresight: tpiu: Fix disabling timeouts
	gpio: pxa: Fix potential NULL dereference
	gpiolib: Mark gpio_suffixes array with __maybe_unused
	mfd: 88pm860x-i2c: switch to i2c_lock_bus(..., I2C_LOCK_SEGMENT)
	input: rohm_bu21023: switch to i2c_lock_bus(..., I2C_LOCK_SEGMENT)
	drm/amdkfd: Fix error codes in kfd_get_process
	rtc: bq4802: add error handling for devm_ioremap
	ALSA: pcm: Fix snd_interval_refine first/last with open min/max
	selftest: timers: Tweak raw_skew to SKIP when ADJ_OFFSET/other clock adjustments are in progress
	drm/panel: type promotion bug in s6e8aa0_read_mtp_id()
	pinctrl: qcom: spmi-gpio: Fix pmic_gpio_config_get() to be compliant
	mei: bus: type promotion bug in mei_nfc_if_version()
	MIPS: VDSO: Match data page cache colouring when D$ aliases
	e1000e: Remove Other from EIAC
	Partial revert "e1000e: Avoid receiver overrun interrupt bursts"
	e1000e: Fix queue interrupt re-raising in Other interrupt
	e1000e: Avoid missed interrupts following ICR read
	Revert "e1000e: Separate signaling for link check/link up"
	e1000e: Fix link check race condition
	Linux 4.9.129

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

1 files changed, 0 insertions, 73 deletions

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index a9c950d29ce2..25ae9b9895a9 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -705,20 +705,9 @@ static int acm_tty_write(struct tty_struct *tty,
 	}
 
 	if (acm->susp_count) {
-		if (acm->putbuffer) {
-			/* now to preserve order */
-			usb_anchor_urb(acm->putbuffer->urb, &acm->delayed);
-			acm->putbuffer = NULL;
-		}
 		usb_anchor_urb(wb->urb, &acm->delayed);
 		spin_unlock_irqrestore(&acm->write_lock, flags);
 		return count;
-	} else {
-		if (acm->putbuffer) {
-			/* at this point there is no good way to handle errors */
-			acm_start_wb(acm, acm->putbuffer);
-			acm->putbuffer = NULL;
-		}
 	}
 
 	stat = acm_start_wb(acm, wb);
@@ -729,66 +718,6 @@ static int acm_tty_write(struct tty_struct *tty,
 	return count;
 }
 
-static void acm_tty_flush_chars(struct tty_struct *tty)
-{
-	struct acm *acm = tty->driver_data;
-	struct acm_wb *cur;
-	int err;
-	unsigned long flags;
-
-	spin_lock_irqsave(&acm->write_lock, flags);
-
-	cur = acm->putbuffer;
-	if (!cur) /* nothing to do */
-		goto out;
-
-	acm->putbuffer = NULL;
-	err = usb_autopm_get_interface_async(acm->control);
-	if (err < 0) {
-		cur->use = 0;
-		acm->putbuffer = cur;
-		goto out;
-	}
-
-	if (acm->susp_count)
-		usb_anchor_urb(cur->urb, &acm->delayed);
-	else
-		acm_start_wb(acm, cur);
-out:
-	spin_unlock_irqrestore(&acm->write_lock, flags);
-	return;
-}
-
-static int acm_tty_put_char(struct tty_struct *tty, unsigned char ch)
-{
-	struct acm *acm = tty->driver_data;
-	struct acm_wb *cur;
-	int wbn;
-	unsigned long flags;
-
-overflow:
-	cur = acm->putbuffer;
-	if (!cur) {
-		spin_lock_irqsave(&acm->write_lock, flags);
-		wbn = acm_wb_alloc(acm);
-		if (wbn >= 0) {
-			cur = &acm->wb[wbn];
-			acm->putbuffer = cur;
-		}
-		spin_unlock_irqrestore(&acm->write_lock, flags);
-		if (!cur)
-			return 0;
-	}
-
-	if (cur->len == acm->writesize) {
-		acm_tty_flush_chars(tty);
-		goto overflow;
-	}
-
-	cur->buf[cur->len++] = ch;
-	return 1;
-}
-
 static int acm_tty_write_room(struct tty_struct *tty)
 {
 	struct acm *acm = tty->driver_data;
@@ -1940,8 +1869,6 @@ static const struct tty_operations acm_ops = {
 	.cleanup =		acm_tty_cleanup,
 	.hangup =		acm_tty_hangup,
 	.write =		acm_tty_write,
-	.put_char =		acm_tty_put_char,
-	.flush_chars =		acm_tty_flush_chars,
 	.write_room =		acm_tty_write_room,
 	.ioctl =		acm_tty_ioctl,
 	.throttle =		acm_tty_throttle,