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8c9a59939d
linux/drivers/input
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Zhang Xiaoxu 8c9a59939d Input: raydium_ts_i2c - fix memory leak in raydium_i2c_send() 
There is a kmemleak when test the raydium_i2c_ts with bpf mock device:

  unreferenced object 0xffff88812d3675a0 (size 8):
    comm "python3", pid 349, jiffies 4294741067 (age 95.695s)
    hex dump (first 8 bytes):
      11 0e 10 c0 01 00 04 00                          ........
    backtrace:
      [<0000000068427125>] __kmalloc+0x46/0x1b0
      [<0000000090180f91>] raydium_i2c_send+0xd4/0x2bf [raydium_i2c_ts]
      [<000000006e631aee>] raydium_i2c_initialize.cold+0xbc/0x3e4 [raydium_i2c_ts]
      [<00000000dc6fcf38>] raydium_i2c_probe+0x3cd/0x6bc [raydium_i2c_ts]
      [<00000000a310de16>] i2c_device_probe+0x651/0x680
      [<00000000f5a96bf3>] really_probe+0x17c/0x3f0
      [<00000000096ba499>] __driver_probe_device+0xe3/0x170
      [<00000000c5acb4d9>] driver_probe_device+0x49/0x120
      [<00000000264fe082>] __device_attach_driver+0xf7/0x150
      [<00000000f919423c>] bus_for_each_drv+0x114/0x180
      [<00000000e067feca>] __device_attach+0x1e5/0x2d0
      [<0000000054301fc2>] bus_probe_device+0x126/0x140
      [<00000000aad93b22>] device_add+0x810/0x1130
      [<00000000c086a53f>] i2c_new_client_device+0x352/0x4e0
      [<000000003c2c248c>] of_i2c_register_device+0xf1/0x110
      [<00000000ffec4177>] of_i2c_notify+0x100/0x160
  unreferenced object 0xffff88812d3675c8 (size 8):
    comm "python3", pid 349, jiffies 4294741070 (age 95.692s)
    hex dump (first 8 bytes):
      22 00 36 2d 81 88 ff ff                          ".6-....
    backtrace:
      [<0000000068427125>] __kmalloc+0x46/0x1b0
      [<0000000090180f91>] raydium_i2c_send+0xd4/0x2bf [raydium_i2c_ts]
      [<000000001d5c9620>] raydium_i2c_initialize.cold+0x223/0x3e4 [raydium_i2c_ts]
      [<00000000dc6fcf38>] raydium_i2c_probe+0x3cd/0x6bc [raydium_i2c_ts]
      [<00000000a310de16>] i2c_device_probe+0x651/0x680
      [<00000000f5a96bf3>] really_probe+0x17c/0x3f0
      [<00000000096ba499>] __driver_probe_device+0xe3/0x170
      [<00000000c5acb4d9>] driver_probe_device+0x49/0x120
      [<00000000264fe082>] __device_attach_driver+0xf7/0x150
      [<00000000f919423c>] bus_for_each_drv+0x114/0x180
      [<00000000e067feca>] __device_attach+0x1e5/0x2d0
      [<0000000054301fc2>] bus_probe_device+0x126/0x140
      [<00000000aad93b22>] device_add+0x810/0x1130
      [<00000000c086a53f>] i2c_new_client_device+0x352/0x4e0
      [<000000003c2c248c>] of_i2c_register_device+0xf1/0x110
      [<00000000ffec4177>] of_i2c_notify+0x100/0x160

After BANK_SWITCH command from i2c BUS, no matter success or error
happened, the tx_buf should be freed.

Fixes: 3b384bd6c3 ("Input: raydium_ts_i2c - do not split tx transactions")
Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com>
Link: https://lore.kernel.org/r/20221202103412.2120169-1-zhangxiaoxu5@huawei.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02 15:42:21 -08:00
..
gameport input: drop empty comment blocks 2022-09-29 16:25:42 -07:00
joystick Input: iforce - invert valid length check when fetching device IDs 2022-11-07 10:28:58 -08:00
keyboard Merge branch 'next' into for-linus 2022-10-09 22:30:23 -07:00
misc Input: soc_button_array - add Acer Switch V 10 to dmi_use_low_level_irq[] 2022-11-07 10:33:26 -08:00
mouse Input: synaptics - switch touchpad on HP Laptop 15-da3001TU to RMI mode 2022-10-15 20:44:12 -07:00
rmi4 Input: synaptics-rmi4 - convert to use sysfs_emit() APIs 2022-09-27 09:00:41 -07:00
serio Input: i8042 - fix leaking of platform device on module removal 2022-11-18 15:59:02 -08:00
tablet input: drop empty comment blocks 2022-09-29 16:25:42 -07:00
touchscreen Input: raydium_ts_i2c - fix memory leak in raydium_i2c_send() 2022-12-02 15:42:21 -08:00
apm-power.c
evbug.c Input: evbug - remove an empty comment block 2021-05-24 21:06:39 -07:00
evdev.c Input: evdev - per-client waitgroups 2020-10-06 18:34:15 -07:00
ff-core.c input: drop empty comment blocks 2022-09-29 16:25:42 -07:00
ff-memless.c input: drop empty comment blocks 2022-09-29 16:25:42 -07:00
input-compat.c
input-compat.h
input-core-private.h Input: deactivate MT slots when inhibiting or suspending devices 2022-07-20 11:35:13 -07:00
input-leds.c
input-mt.c Input: deactivate MT slots when inhibiting or suspending devices 2022-07-20 11:35:13 -07:00
input-poller.c Input: use input_device_enabled() 2020-12-02 22:10:33 -08:00
input-poller.h
input.c Input: deactivate MT slots when inhibiting or suspending devices 2022-07-20 11:35:13 -07:00
joydev.c Input: joydev - fix comment typo 2022-09-25 00:57:25 -07:00
Kconfig Input: extract ChromeOS vivaldi physmap show function 2022-03-14 21:11:09 -07:00
Makefile Input: extract ChromeOS vivaldi physmap show function 2022-03-14 21:11:09 -07:00
matrix-keymap.c
mousedev.c
sparse-keymap.c Input: Use fallthrough pseudo-keyword 2020-07-07 11:25:54 -07:00
touchscreen.c Input: touchscreen - avoid bitwise vs logical OR warning 2021-10-15 22:22:54 -07:00
vivaldi-fmap.c Input: extract ChromeOS vivaldi physmap show function 2022-03-14 21:11:09 -07:00