From: Christophe JAILLET christophe.jaillet@wanadoo.fr
commit a9c09546e903f1068acfa38e1ee18bded7114b37 upstream.
If clk_get_rate() fails, the clk that has just been allocated needs to be freed.
Cc: stable@vger.kernel.org # v3.3+ Reviewed-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org Reviewed-by: Andi Shyti andi.shyti@kernel.org Fixes: 5f5a7a5578c5 ("serial: samsung: switch to clkdev based clock lookup") Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Reviewed-by: Jiri Slaby jirislaby@kernel.org Message-ID: e4baf6039368f52e5a5453982ddcb9a330fc689e.1686412569.git.christophe.jaillet@wanadoo.fr Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/tty/serial/samsung_tty.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/tty/serial/samsung_tty.c +++ b/drivers/tty/serial/samsung_tty.c @@ -1478,8 +1478,12 @@ static unsigned int s3c24xx_serial_getcl continue;
rate = clk_get_rate(clk); - if (!rate) + if (!rate) { + dev_err(ourport->port.dev, + "Failed to get clock rate for %s.\n", clkname); + clk_put(clk); continue; + }
if (ourport->info->has_divslot) { unsigned long div = rate / req_baud;