[PATCH 045/190] Revert "usb: gadget: fix potential double-free in m66592_probe."

Greg Kroah-Hartman
2021-04-21T13:03:27Z

This reverts commit 44734a594196bf1d474212f38fe3a0d37a73278b.

Commits from @umn.edu addresses have been found to be submitted in "bad
faith" to try to test the kernel community's ability to review "known
malicious" changes. The result of these submissions can be found in a
paper published at the 42nd IEEE Symposium on Security and Privacy
entitled, "Open Source Insecurity: Stealthily Introducing
Vulnerabilities via Hypocrite Commits" written by Qiushi Wu (University
of Minnesota) and Kangjie Lu (University of Minnesota).

Because of this, all submissions from this group must be reverted from
the kernel tree and will need to be re-reviewed again to determine if
they actually are a valid fix. Until that work is complete, remove this
change to ensure that no problems are being introduced into the
codebase.

Cc: Qiushi Wu <wu000273@umn.edu>
Cc: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/gadget/udc/m66592-udc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/udc/m66592-udc.c b/drivers/usb/gadget/udc/m66592-udc.c
index 931e6362a13d..75d16a8902e6 100644
--- a/drivers/usb/gadget/udc/m66592-udc.c
+++ b/drivers/usb/gadget/udc/m66592-udc.c
@@ -1667,7 +1667,7 @@ static int m66592_probe(struct platform_device *pdev)

err_add_udc:
m66592_free_request(&m66592->ep[0].ep, m66592->ep0_req);
- m66592->ep0_req = NULL;
+
clean_up3:
if (m66592->pdata->on_chip) {
clk_disable(m66592->clk);
--
2.31.1