diff options
| author | Liang He <windhl@126.com> | 2022-06-18 14:08:50 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-25 11:11:36 +0200 |
| commit | ec56f886f3bf0f15f7a3844d4c025e165b8e8de7 (patch) | |
| tree | f4e31bd7e642eda030fe8b0fb6d3e80286682c41 | |
| parent | 952b3dc02baaae6a69c71c0aca23e06741182d9a (diff) | |
tty: serial: Fix refcount leak bug in ucc_uart.c
[ Upstream commit d24d7bb2cd947676f9b71fb944d045e09b8b282f ]
In soc_info(), of_find_node_by_type() will return a node pointer
with refcount incremented. We should use of_node_put() when it is
not used anymore.
Acked-by: Timur Tabi <timur@kernel.org>
Signed-off-by: Liang He <windhl@126.com>
Link: https://lore.kernel.org/r/20220618060850.4058525-1-windhl@126.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/tty/serial/ucc_uart.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/tty/serial/ucc_uart.c b/drivers/tty/serial/ucc_uart.c index 55b702775786..40b8e414f48f 100644 --- a/drivers/tty/serial/ucc_uart.c +++ b/drivers/tty/serial/ucc_uart.c @@ -1143,6 +1143,8 @@ static unsigned int soc_info(unsigned int *rev_h, unsigned int *rev_l) /* No compatible property, so try the name. */ soc_string = np->name; + of_node_put(np); + /* Extract the SOC number from the "PowerPC," string */ if ((sscanf(soc_string, "PowerPC,%u", &soc) != 1) || !soc) return 0; |