Vignesh R
a1bfb6eb30
serial: 8250: 8250_omap: Fix race b/w dma completion and RX timeout ...
DMA RX completion handler for UART is called from a tasklet and hence
may be delayed depending on the system load. In meanwhile, there may be
RX timeout interrupt which can get serviced first before DMA RX
completion handler is executed for the completed transfer.
omap_8250_rx_dma_flush() which is called on RX timeout interrupt makes
sure that the DMA RX buffer is pushed and then the FIFO is drained and
also queues a new DMA request. But, when DMA RX completion handler
executes, it will erroneously flush the currently queued DMA transfer
which sometimes results in data corruption and double queueing of DMA RX
requests.
Fix this by checking whether RX completion is for the currently queued
transfer or not. And also hold port lock when in DMA completion to avoid
race wrt RX timeout handler preempting it.
Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-29 17:03:10 +02:00
Merge branches 'acpi-button', 'acpica' and 'acpi-sysfs'
2017-06-03 00:03:29 +02:00
Merge branches 'pm-sleep' and 'powercap'
2017-05-22 20:32:05 +02:00
A small fix for rbd FALLOC_FL_ZERO_RANGE/PUNCH_HOLE handling breakage
2017-06-02 12:03:07 -07:00
Fix a race on architectures with prioritized interrupts (such as m68k)
2017-06-02 16:19:47 -07:00
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-05-12 10:43:25 -07:00
Merge branch 'pm-cpufreq'
2017-06-03 00:01:45 +02:00
dax: fix false CONFIG_BLOCK dependency
2017-05-13 16:18:21 -07:00
dmaengine: pl330: fix warning in pl330_remove
2017-06-02 11:49:44 +05:30
Merge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-06-02 08:51:53 -07:00
DP quirk for usb c dongles
2017-06-02 11:32:38 -07:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
2017-06-02 09:23:56 -07:00
hwmon: (aspeed-pwm-tacho) make fan/pwm names start with index 1
2017-06-03 03:55:43 -07:00
i2c: designware: Fix bogus sda_hold_time due to uninitialized vars
2017-05-22 19:22:19 -07:00
RDMA/SA: Fix kernel panic in CMA request handler flow
2017-06-01 17:20:14 -04:00
Input: axp20x-pek - switch to acpi_dev_present and check for ACPI0011 too
2017-06-02 17:53:20 -07:00
iommu/mediatek: Include linux/dma-mapping.h
2017-05-17 14:51:54 +02:00
Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-05-21 11:45:26 -07:00
leds: pca955x: Correct I2C Functionality
2017-05-22 21:12:44 +02:00
- a DM verity fix for a mode when no salt is used
2017-06-02 11:50:37 -07:00
mtk-vcodec: Use designated initializers
2017-05-28 10:23:02 -07:00
memory: omap-gpmc: Fix debug output for access width
2017-05-16 08:12:47 -07:00
sgi-xp: Use designated initializers
2017-05-28 10:22:42 -07:00
This pull request contains fixes to make the WiFi work again for the ARM64
2017-05-26 09:05:35 -07:00
mtd: nand: make nand_ooblayout_lp_hamming_ops static
2017-05-22 09:42:29 +02:00
net: ethernet: ax88796: don't call free_irq without request_irq first
2017-05-26 14:55:38 -04:00
Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
2017-05-12 15:43:10 -07:00
nvme: Quirk APST on Intel 600P/P3100 devices
2017-05-26 11:53:02 +03:00
MMC host:
2017-05-24 08:21:56 -07:00
PCI/PM: Add needs_resume flag to avoid suspend complete optimization
2017-05-23 14:18:17 -05:00
drivers/perf: arm_pmu_acpi: avoid perf IRQ init when guest PMU is off
2017-05-30 12:40:03 +01:00
pinctrl: sunxi: Fix SPDIF function name for A83T
2017-05-23 11:31:27 +02:00
power supply and reset changes for the v4.12 series (part 2)
2017-05-12 12:02:21 -07:00
PowerCap: Fix an error code in powercap_register_zone()
2017-05-14 13:30:05 +02:00
Merge branches 'pm-sleep' and 'powercap'
2017-05-22 20:32:05 +02:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2017-05-16 09:24:44 -07:00
SCSI fixes on 20170603
2017-06-04 11:15:43 -07:00
ARM: SoC fixes (and a cross-arch dt-include fix)
2017-05-19 13:36:56 -07:00
staging: fsl-dpaa2/eth: add ETHERNET dependency
2017-05-16 14:23:31 +02:00
iscsi-target: Always wait for kthread_should_stop() before kthread exit
2017-05-31 15:12:57 -07:00
Linux 4.12-rc1
2017-05-18 23:54:47 -07:00
thermal: broadcom: ns-thermal: default on iProc SoCs
2017-05-23 20:09:34 -07:00
serial: 8250: 8250_omap: Fix race b/w dma completion and RX timeout
2017-06-29 17:03:10 +02:00
uio: fix incorrect memory leak cleanup
2017-05-16 23:06:41 +02:00
USB: serial: ftdi_sio: remove broken alt-speed handling
2017-06-13 11:49:58 +02:00
uwb: fix device quirk on big-endian hosts
2017-05-17 11:27:41 +02:00
fbdev changes for v4.12:
2017-05-11 11:12:26 -07:00
watchdog: bcm281xx: Fix use of uninitialized spinlock.
2017-05-19 10:42:25 +02:00
a1bfb6eb30