6b6bc5b8bd
In emac_probe, &adpt->work_thread is bound with
emac_work_thread. Then it will be started by timeout
handler emac_tx_timeout or a IRQ handler emac_isr.
If we remove the driver which will call emac_remove
to make cleanup, there may be a unfinished work.
The possible sequence is as follows:
Fix it by finishing the work before cleanup in the emac_remove
and disable timeout response.
CPU0 CPU1
|emac_work_thread
emac_remove |
free_netdev |
kfree(netdev); |
|emac_reinit_locked
|emac_mac_down
|//use netdev
Fixes:
|
||
|---|---|---|
| .. | ||
| emac | ||
| rmnet | ||
| Kconfig | ||
| Makefile | ||
| qca_7k.c | ||
| qca_7k.h | ||
| qca_7k_common.c | ||
| qca_7k_common.h | ||
| qca_debug.c | ||
| qca_debug.h | ||
| qca_spi.c | ||
| qca_spi.h | ||
| qca_uart.c | ||