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staging: r8188eu: don't accept SIGTERM for cmd thread 

At the moment, our command thread can be killed by user space.

[root@host ]# kill `pidof RTW_CMD_THREAD`

The driver will then stop working until the module is unloaded
and reloaded.

Don't process SIGTERM in the command thread. Other drivers that have a
command thread don't process SIGTERM either.

Acked-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20211016181343.3686-4-martin@kaiser.cx
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Martin Kaiser 2021-10-16 20:13:43 +02:00 committed by Greg Kroah-Hartman
parent d508cee5d0
commit bef56d47b9
2 changed files with 0 additions and 7 deletions
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2
drivers/staging/r8188eu/core/rtw_cmd.c
View File

@ -243,8 +243,6 @@ int rtw_cmd_thread(void *context)
struct adapter *padapter = (struct adapter *)context;
struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
thread_enter("RTW_CMD_THREAD");
pcmdbuf = pcmdpriv->cmd_buf;
pcmdpriv->cmdthd_running = true;

5
drivers/staging/r8188eu/include/osdep_service.h
View File

@ -160,11 +160,6 @@ static inline unsigned char _cancel_timer_ex(struct timer_list *ptimer)
return del_timer_sync(ptimer);
}
static __inline void thread_enter(char *name)
{
allow_signal(SIGTERM);
}
static inline void flush_signals_thread(void)
{
if (signal_pending (current))