From: Krzysztof Opasiak <k.opasiak@xxxxxxxxxxx> This patch has been added to the 4.1 stable tree. If you have any objections, please let us know. =============== [ Upstream commit 903588a99c26ed6f103eaa0cfa4ccbe9cd779398 ] Creation of LUN 0 may fail (for example due to ENOMEM). As fsg_common_set_num_buffers() does some memory allocation we should free it before it becomes unavailable. Signed-off-by: Krzysztof Opasiak <k.opasiak@xxxxxxxxxxx> Acked-by: Michal Nazarewicz <mina86@xxxxxxxxxx> Signed-off-by: Felipe Balbi <balbi@xxxxxx> Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx> --- drivers/usb/gadget/function/f_mass_storage.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/usb/gadget/function/f_mass_storage.c b/drivers/usb/gadget/function/f_mass_storage.c index 15c3071..18499df 100644 --- a/drivers/usb/gadget/function/f_mass_storage.c +++ b/drivers/usb/gadget/function/f_mass_storage.c @@ -3524,6 +3524,9 @@ static struct usb_function_instance *fsg_alloc_inst(void) config.removable = true; rc = fsg_common_create_lun(opts->common, &config, 0, "lun.0", (const char **)&opts->func_inst.group.cg_item.ci_name); + if (rc) + goto release_buffers; + opts->lun0.lun = opts->common->luns[0]; opts->lun0.lun_id = 0; config_group_init_type_name(&opts->lun0.group, "lun.0", &fsg_lun_type); @@ -3534,6 +3537,8 @@ static struct usb_function_instance *fsg_alloc_inst(void) return &opts->func_inst; +release_buffers: + fsg_common_free_buffers(opts->common); release_luns: kfree(opts->common->luns); release_opts: -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html