forked from luck/tmp_suning_uos_patched
93900337b9
create_cpu_loop() calls smu_sat_get_sdb_partition() which does
kmalloc() and returns the allocated buffer. In fact it's called twice,
and neither buffer is freed.
This results in a memory leak as reported by Erhard:
unreferenced object 0xc00000047081f840 (size 32):
comm "kwindfarm", pid 203, jiffies 4294880630 (age 5552.877s)
hex dump (first 32 bytes):
c8 06 02 7f ff 02 ff 01 fb bf 00 41 00 20 00 00 ...........A. ..
00 07 89 37 00 a0 00 00 00 00 00 00 00 00 00 00 ...7............
backtrace:
[<0000000083f0a65c>] .smu_sat_get_sdb_partition+0xc4/0x2d0 [windfarm_smu_sat]
[<000000003010fcb7>] .pm112_wf_notify+0x104c/0x13bc [windfarm_pm112]
[<00000000b958b2dd>] .notifier_call_chain+0xa8/0x180
[<0000000070490868>] .blocking_notifier_call_chain+0x64/0x90
[<00000000131d8149>] .wf_thread_func+0x114/0x1a0
[<000000000d54838d>] .kthread+0x13c/0x190
[<00000000669b72bc>] .ret_from_kernel_thread+0x58/0x64
unreferenced object 0xc0000004737089f0 (size 16):
comm "kwindfarm", pid 203, jiffies 4294880879 (age 5552.050s)
hex dump (first 16 bytes):
c4 04 01 7f 22 11 e0 e6 ff 55 7b 12 ec 11 00 00 ...."....U{.....
backtrace:
[<0000000083f0a65c>] .smu_sat_get_sdb_partition+0xc4/0x2d0 [windfarm_smu_sat]
[<00000000b94ef7e1>] .pm112_wf_notify+0x1294/0x13bc [windfarm_pm112]
[<00000000b958b2dd>] .notifier_call_chain+0xa8/0x180
[<0000000070490868>] .blocking_notifier_call_chain+0x64/0x90
[<00000000131d8149>] .wf_thread_func+0x114/0x1a0
[<000000000d54838d>] .kthread+0x13c/0x190
[<00000000669b72bc>] .ret_from_kernel_thread+0x58/0x64
Fix it by rearranging the logic so we deal with each buffer
separately, which then makes it easy to free the buffer once we're
done with it.
Fixes:
|
||
|---|---|---|
| .. | ||
| ams | ||
| adb-iop.c | ||
| adb.c | ||
| adbhid.c | ||
| ans-lcd.c | ||
| ans-lcd.h | ||
| apm_emu.c | ||
| Kconfig | ||
| mac_hid.c | ||
| macio_asic.c | ||
| macio_sysfs.c | ||
| macio-adb.c | ||
| Makefile | ||
| mediabay.c | ||
| rack-meter.c | ||
| smu.c | ||
| therm_adt746x.c | ||
| therm_windtunnel.c | ||
| via-cuda.c | ||
| via-macii.c | ||
| via-pmu-backlight.c | ||
| via-pmu-event.c | ||
| via-pmu-event.h | ||
| via-pmu-led.c | ||
| via-pmu.c | ||
| windfarm_ad7417_sensor.c | ||
| windfarm_core.c | ||
| windfarm_cpufreq_clamp.c | ||
| windfarm_fcu_controls.c | ||
| windfarm_lm75_sensor.c | ||
| windfarm_lm87_sensor.c | ||
| windfarm_max6690_sensor.c | ||
| windfarm_mpu.h | ||
| windfarm_pid.c | ||
| windfarm_pid.h | ||
| windfarm_pm72.c | ||
| windfarm_pm81.c | ||
| windfarm_pm91.c | ||
| windfarm_pm112.c | ||
| windfarm_pm121.c | ||
| windfarm_rm31.c | ||
| windfarm_smu_controls.c | ||
| windfarm_smu_sat.c | ||
| windfarm_smu_sensors.c | ||
| windfarm.h | ||