rpmsg: char: release allocated memory

In rpmsg_eptdev_write_iter, if copy_from_iter_full fails the allocated buffer needs to be released. Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
torvalds · Oct 5, 2019 · bbe692e · bbe692e
1 parent 54ecb8f
commit bbe692e
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/drivers/rpmsg/rpmsg_char.c b/drivers/rpmsg/rpmsg_char.c
@@ -227,8 +227,10 @@ static ssize_t rpmsg_eptdev_write_iter(struct kiocb *iocb,
 	if (!kbuf)
 		return -ENOMEM;
 
-	if (!copy_from_iter_full(kbuf, len, from))
-		return -EFAULT;
+	if (!copy_from_iter_full(kbuf, len, from)) {
+		ret = -EFAULT;
+		goto free_kbuf;
+	}
 
 	if (mutex_lock_interruptible(&eptdev->ept_lock)) {
 		ret = -ERESTARTSYS;