usb: gadget: dummy_hcd: fix error return code in init()

Fix to return -ENOMEM in the kzalloc() error handling case instead
of 0(following platform_device_add_data() will overwrite it to 0), as
done elsewhere in this function.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index 22236ec..c588e8e 100644 (file)
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -2660,8 +2660,10 @@ static int __init init(void)
        }
        for (i = 0; i < mod_data.num; i++) {
                dum[i] = kzalloc(sizeof(struct dummy), GFP_KERNEL);
-               if (!dum[i])
+               if (!dum[i]) {
+                       retval = -ENOMEM;
                        goto err_add_pdata;
+               }
                retval = platform_device_add_data(the_hcd_pdev[i], &dum[i],
                                sizeof(void *));
                if (retval)