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| author |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-02-02 15:11:00 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-11 13:50:45 +0100 |
| commit | f7651fa88b17c2d7af949981a2423179db5e9453 (patch) | |
| tree | 6e23c09185d2301955d6d43e128b6edebbe46ac2 | |
| parent | tty: pcn_uart: fix memory leak with using debugfs_lookup() (diff) | |
| download | linux-stable-f7651fa88b17c2d7af949981a2423179db5e9453.tar.xz linux-stable-f7651fa88b17c2d7af949981a2423179db5e9453.zip | |
misc: vmw_balloon: fix memory leak with using debugfs_lookup()
[ Upstream commit 209cdbd07cfaa4b7385bad4eeb47e5ec1887d33d ]
When calling debugfs_lookup() the result must have dput() called on it,
otherwise the memory will leak over time. To make things simpler, just
call debugfs_lookup_and_remove() instead which handles all of the logic at
once.
Cc: Nadav Amit <namit@vmware.com>
Cc: VMware PV-Drivers Reviewers <pv-drivers@vmware.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230202141100.2291188-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/misc/vmw_balloon.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/misc/vmw_balloon.c b/drivers/misc/vmw_balloon.c index 61a2be712bf7..9ce9b9e0e9b6 100644 --- a/drivers/misc/vmw_balloon.c +++ b/drivers/misc/vmw_balloon.c @@ -1709,7 +1709,7 @@ static void __init vmballoon_debugfs_init(struct vmballoon *b) static void __exit vmballoon_debugfs_exit(struct vmballoon *b) { static_key_disable(&balloon_stat_enabled.key); - debugfs_remove(debugfs_lookup("vmmemctl", NULL)); + debugfs_lookup_and_remove("vmmemctl", NULL); kfree(b->stats); b->stats = NULL; } |