Patch "staging: vt6655: fix potential memory leak" has been added to the 5.15-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    staging: vt6655: fix potential memory leak

to the 5.15-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     staging-vt6655-fix-potential-memory-leak.patch
and it can be found in the queue-5.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 04b83dbd7b2dcc09538a787a8e5521108273511b
Author: Nam Cao <namcaov@xxxxxxxxx>
Date:   Fri Sep 9 16:13:39 2022 +0200

    staging: vt6655: fix potential memory leak
    
    [ Upstream commit c8ff91535880d41b49699b3829fb6151942de29e ]
    
    In function device_init_td0_ring, memory is allocated for member
    td_info of priv->apTD0Rings[i], with i increasing from 0. In case of
    allocation failure, the memory is freed in reversed order, with i
    decreasing to 0. However, the case i=0 is left out and thus memory is
    leaked.
    
    Modify the memory freeing loop to include the case i=0.
    
    Tested-by: Philipp Hortmann <philipp.g.hortmann@xxxxxxxxx>
    Signed-off-by: Nam Cao <namcaov@xxxxxxxxx>
    Link: https://lore.kernel.org/r/20220909141338.19343-1-namcaov@xxxxxxxxx
    Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c
index 43e32360b6d9..775537b243aa 100644
--- a/drivers/staging/vt6655/device_main.c
+++ b/drivers/staging/vt6655/device_main.c
@@ -676,7 +676,7 @@ static int device_init_td0_ring(struct vnt_private *priv)
 	return 0;
 
 err_free_desc:
-	while (--i) {
+	while (i--) {
 		desc = &priv->apTD0Rings[i];
 		kfree(desc->td_info);
 	}