Google Git
Sign in
android / kernel / google-modules / lwis / refs/tags/android-14.0.0_r0.66
tag41ac0daebe889621a3e82d3efd3496baec227270
taggerThe Android Open Source Project <initial-contribution@android.com>Tue Apr 02 15:48:49 2024 -0700
objecte93b073b2f1f5f9a0c479714efceb9ac78c027cd 
Android 14.0.0 Release 0.66 (AP1A.240405.002.A1,felix)
commite93b073b2f1f5f9a0c479714efceb9ac78c027cd[log] [tgz]
authorNick Chung <nickchung@google.com>Thu Sep 14 06:48:17 2023 +0000
committerNick Chung <nickchung@google.com>Fri Dec 15 05:41:35 2023 +0000
treeecead8c9331aed9475c9d0f767355a7a2518204a
parent3a481043276aab160b88fe1ace34598df43945c8 [diff]
LWIS: fix race condition

To prevent ramdumps caused by accessing invalid DMA address,
we have made sure that the dma addr is valid and add a lock to
avoid race condition when multiple clients access the DMA address.

Bug: 315986225
Test: CTS, GCA, Force to ramdump to check it.
Change-Id: Iba1b9850f0aefa8025fe51504a1b39374ec385ae
Signed-off-by: Nick Chung <nickchung@google.com>
(cherry picked from commit ccfcf1ed071f43c12a61e8c096a61353d45ace22)
3 files changed
tree: ecead8c9331aed9475c9d0f767355a7a2518204a
  1. platform/
  2. .clang-format
  3. BUILD.bazel
  4. Kbuild
  5. Kconfig
  6. lwis_allocator.c
  7. lwis_allocator.h
  8. lwis_buffer.c
  9. lwis_buffer.h
  10. lwis_clock.c
  11. lwis_clock.h
  12. lwis_commands.h
  13. lwis_debug.c
  14. lwis_debug.h
  15. lwis_device.c
  16. lwis_device.h
  17. lwis_device_dpm.c
  18. lwis_device_dpm.h
  19. lwis_device_i2c.c
  20. lwis_device_i2c.h
  21. lwis_device_ioreg.c
  22. lwis_device_ioreg.h
  23. lwis_device_slc.c
  24. lwis_device_slc.h
  25. lwis_device_test.c
  26. lwis_device_test.h
  27. lwis_device_top.c
  28. lwis_device_top.h
  29. lwis_dt.c
  30. lwis_dt.h
  31. lwis_event.c
  32. lwis_event.h
  33. lwis_fence.c
  34. lwis_fence.h
  35. lwis_gpio.c
  36. lwis_gpio.h
  37. lwis_i2c.c
  38. lwis_i2c.h
  39. lwis_i2c_bus_manager.c
  40. lwis_i2c_bus_manager.h
  41. lwis_i2c_sched.c
  42. lwis_i2c_sched.h
  43. lwis_init.h
  44. lwis_interrupt.c
  45. lwis_interrupt.h
  46. lwis_io_entry.c
  47. lwis_io_entry.h
  48. lwis_ioctl.c
  49. lwis_ioctl.h
  50. lwis_ioreg.c
  51. lwis_ioreg.h
  52. lwis_periodic_io.c
  53. lwis_periodic_io.h
  54. lwis_phy.c
  55. lwis_phy.h
  56. lwis_pinctrl.c
  57. lwis_pinctrl.h
  58. lwis_platform.h
  59. lwis_platform_dma.h
  60. lwis_regulator.c
  61. lwis_regulator.h
  62. lwis_trace.h
  63. lwis_transaction.c
  64. lwis_transaction.h
  65. lwis_util.c
  66. lwis_util.h
  67. lwis_version.c
  68. lwis_version.h
  69. Makefile