usb: gadget: Fix return value check in ep_write()
In case of error, the function memdup_user() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check
should be replaced with IS_ERR().
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c
index 2e4ce77..e96077b 100644
--- a/drivers/usb/gadget/legacy/inode.c
+++ b/drivers/usb/gadget/legacy/inode.c
@@ -440,7 +440,7 @@
value = -ENOMEM;
kbuf = memdup_user(buf, len);
- if (!kbuf) {
+ if (IS_ERR(kbuf)) {
value = PTR_ERR(kbuf);
goto free1;
}
