test_firmware: fix error return getting clobbered

In the case where eq->fw->size > PAGE_SIZE the error return rc
is being set to EINVAL however this is being overwritten to
rc = req->fw->size because the error exit path via label 'out' is
not being taken.  Fix this by adding the jump to the error exit
path 'out'.

Detected by CoverityScan, CID#1453465 ("Unused value")

Fixes: c92316bf8e94 ("test_firmware: add batched firmware tests")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/test_firmware.c b/lib/test_firmware.c
index b984806d7d7b..7cab9a9869ac 100644
--- a/lib/test_firmware.c
+++ b/lib/test_firmware.c
@@ -837,6 +837,7 @@ static ssize_t read_firmware_show(struct device *dev,
         if (req->fw->size > PAGE_SIZE) {
                 pr_err("Testing interface must use PAGE_SIZE firmware for now\n");
                 rc = -EINVAL;
+                goto out;
         }
         memcpy(buf, req->fw->data, req->fw->size);