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usb: gadget: f_mass_storage: create fsg_common_run_thread for use in fsg_common_init 

fsg_common_init is a lengthy function. Factor a portion of it out.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Andrzej Pietrasiewicz 2013-10-09 10:06:00 +02:00 committed by Felipe Balbi
parent 23682e3c78
commit 5de862d73b
2 changed files with 23 additions and 11 deletions
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32
drivers/usb/gadget/f_mass_storage.c
View File

@ -2996,6 +2996,24 @@ void fsg_common_set_inquiry_string(struct fsg_common *common, const char *vn,
i);
}
int fsg_common_run_thread(struct fsg_common *common)
{
common->state = FSG_STATE_IDLE;
/* Tell the thread to start working */
common->thread_task =
kthread_create(fsg_main_thread, common, "file-storage");
if (IS_ERR(common->thread_task)) {
common->state = FSG_STATE_TERMINATED;
return PTR_ERR(common->thread_task);
}
DBG(common, "I/O thread pid: %d\n", task_pid_nr(common->thread_task));
wake_up_process(common->thread_task);
return 0;
}
struct fsg_common *fsg_common_init(struct fsg_common *common,
struct usb_composite_dev *cdev,
struct fsg_config *cfg)
@ -3032,21 +3050,13 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
fsg_common_set_inquiry_string(common, cfg->vendor_name,
cfg->product_name);
/* Tell the thread to start working */
common->thread_task =
kthread_create(fsg_main_thread, common, "file-storage");
if (IS_ERR(common->thread_task)) {
rc = PTR_ERR(common->thread_task);
goto error_release;
}
/* Information */
INFO(common, FSG_DRIVER_DESC ", version: " FSG_DRIVER_VERSION "\n");
INFO(common, "Number of LUNs=%d\n", common->nluns);
DBG(common, "I/O thread pid: %d\n", task_pid_nr(common->thread_task));
wake_up_process(common->thread_task);
rc = fsg_common_run_thread(common);
if (rc)
goto error_release;
return common;

2
drivers/usb/gadget/f_mass_storage.h
View File

@ -126,6 +126,8 @@ int fsg_common_create_luns(struct fsg_common *common, struct fsg_config *cfg);
void fsg_common_set_inquiry_string(struct fsg_common *common, const char *vn,
const char *pn);
int fsg_common_run_thread(struct fsg_common *common);
void fsg_config_from_params(struct fsg_config *cfg,
const struct fsg_module_parameters *params,
unsigned int fsg_num_buffers);