diff --git a/drivers/char/adsprpc.c b/drivers/char/adsprpc.c index 45a525d402d0..8c3103eb30a2 100644 --- a/drivers/char/adsprpc.c +++ b/drivers/char/adsprpc.c @@ -645,6 +645,8 @@ struct fastrpc_file { struct completion work; /* Flag to indicate ram dump collection status*/ bool is_ramdump_pend; + /* Flag to indicate dynamic process creation status*/ + bool in_process_create; }; static struct fastrpc_apps gfa; @@ -3658,6 +3660,15 @@ static int fastrpc_init_create_dynamic_process(struct fastrpc_file *fl, int siglen; } inbuf; + spin_lock(&fl->hlock); + if (fl->in_process_create) { + err = -EALREADY; + ADSPRPC_ERR("Already in create dynamic process\n"); + spin_unlock(&fl->hlock); + return err; + } + fl->in_process_create = true; + spin_unlock(&fl->hlock); inbuf.pgid = fl->tgid; inbuf.namelen = strlen(current->comm) + 1; inbuf.filelen = init->filelen; @@ -3824,6 +3835,9 @@ bail: locked = 0; } } + spin_lock(&fl->hlock); + fl->in_process_create = false; + spin_unlock(&fl->hlock); return err; } @@ -5187,6 +5201,7 @@ skip_dump_wait: spin_lock(&fl->apps->hlock); hlist_del_init(&fl->hn); fl->is_ramdump_pend = false; + fl->in_process_create = false; spin_unlock(&fl->apps->hlock); kfree(fl->debug_buf); kfree(fl->gidlist.gids); @@ -5594,6 +5609,7 @@ static int fastrpc_device_open(struct inode *inode, struct file *filp) fl->qos_request = 0; fl->dsp_proc_init = 0; fl->is_ramdump_pend = false; + fl->in_process_create = false; init_completion(&fl->work); fl->file_close = FASTRPC_PROCESS_DEFAULT_STATE; filp->private_data = fl;