Signed-off-by: Krzysztof Opasiak <k.opas...@samsung.com> --- drivers/usb/gadget/function/f_mass_storage.c | 5 +++++ drivers/usb/gadget/function/f_mass_storage.h | 1 + 2 files changed, 6 insertions(+)
diff --git a/drivers/usb/gadget/function/f_mass_storage.c b/drivers/usb/gadget/function/f_mass_storage.c index 811929c..095b618 100644 --- a/drivers/usb/gadget/function/f_mass_storage.c +++ b/drivers/usb/gadget/function/f_mass_storage.c @@ -3372,6 +3372,8 @@ static struct config_group *fsg_lun_make(struct config_group *group, } opts->lun = fsg_opts->common->luns[num]; opts->lun_id = num; + BUG_ON(fsg_opts->lun_opts[num]); + fsg_opts->lun_opts[num] = opts; mutex_unlock(&fsg_opts->lock); config_group_init_type_name(&opts->group, name, &fsg_lun_type); @@ -3400,6 +3402,7 @@ static void fsg_lun_drop(struct config_group *group, struct config_item *item) fsg_common_remove_lun(lun_opts->lun, fsg_opts->common->sysfs); fsg_opts->common->luns[lun_opts->lun_id] = NULL; + fsg_opts->lun_opts[lun_opts->lun_id] = NULL; lun_opts->lun_id = 0; mutex_unlock(&fsg_opts->lock); @@ -3546,6 +3549,7 @@ static struct usb_function_instance *fsg_alloc_inst(void) if (!opts) return ERR_PTR(-ENOMEM); mutex_init(&opts->lock); + memset(opts->lun_opts, 0, sizeof(opts->lun_opts)); opts->func_inst.free_func_inst = fsg_free_inst; opts->common = fsg_common_setup(opts->common); if (IS_ERR(opts->common)) { @@ -3569,6 +3573,7 @@ static struct usb_function_instance *fsg_alloc_inst(void) (const char **)&opts->func_inst.group.cg_item.ci_name); opts->lun0.lun = opts->common->luns[0]; opts->lun0.lun_id = 0; + opts->lun_opts[0] = &opts->lun0; config_group_init_type_name(&opts->lun0.group, "lun.0", &fsg_lun_type); opts->default_groups[0] = &opts->lun0.group; opts->func_inst.group.default_groups = opts->default_groups; diff --git a/drivers/usb/gadget/function/f_mass_storage.h b/drivers/usb/gadget/function/f_mass_storage.h index b4866fc..0a7c656 100644 --- a/drivers/usb/gadget/function/f_mass_storage.h +++ b/drivers/usb/gadget/function/f_mass_storage.h @@ -81,6 +81,7 @@ struct fsg_opts { struct fsg_common *common; struct usb_function_instance func_inst; struct fsg_lun_opts lun0; + struct fsg_lun_opts *lun_opts[FSG_MAX_LUNS]; struct config_group *default_groups[2]; bool no_configfs; /* for legacy gadgets */ -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html