This is a note to let you know that I've just added the patch titled tty: serial: samsung_tty: Fix a memory leak in s3c24xx_serial_getclk() in case of error to the 5.10-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: tty-serial-samsung_tty-fix-a-memory-leak-in-s3c24xx_serial_getclk-in-case-of-error.patch and it can be found in the queue-5.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From a9c09546e903f1068acfa38e1ee18bded7114b37 Mon Sep 17 00:00:00 2001 From: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx> Date: Sat, 10 Jun 2023 17:59:25 +0200 Subject: tty: serial: samsung_tty: Fix a memory leak in s3c24xx_serial_getclk() in case of error From: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx> commit a9c09546e903f1068acfa38e1ee18bded7114b37 upstream. If clk_get_rate() fails, the clk that has just been allocated needs to be freed. Cc: <stable@xxxxxxxxxxxxxxx> # v3.3+ Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> Reviewed-by: Andi Shyti <andi.shyti@xxxxxxxxxx> Fixes: 5f5a7a5578c5 ("serial: samsung: switch to clkdev based clock lookup") Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx> Reviewed-by: Jiri Slaby <jirislaby@xxxxxxxxxx> Message-ID: <e4baf6039368f52e5a5453982ddcb9a330fc689e.1686412569.git.christophe.jaillet@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- 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 @@ -1313,8 +1313,12 @@ 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; Patches currently in stable-queue which might be from christophe.jaillet@xxxxxxxxxx are queue-5.10/wifi-ray_cs-fix-an-error-handling-path-in-ray_probe.patch queue-5.10/ib-hfi1-use-bitmap_zalloc-when-applicable.patch queue-5.10/wifi-orinoco-fix-an-error-handling-path-in-orinoco_c.patch queue-5.10/tty-serial-samsung_tty-fix-a-memory-leak-in-s3c24xx_serial_getclk-when-iterating-clk.patch queue-5.10/usb-dwc3-qcom-fix-an-error-handling-path-in-dwc3_qco.patch queue-5.10/usb-dwc3-qcom-release-the-correct-resources-in-dwc3_.patch queue-5.10/wifi-orinoco-fix-an-error-handling-path-in-spectrum_.patch queue-5.10/firmware-stratix10-svc-fix-a-potential-resource-leak-in-svc_create_memory_pool.patch queue-5.10/wifi-mwifiex-fix-the-size-of-a-memory-allocation-in-.patch queue-5.10/thermal-drivers-sun8i-fix-some-error-handling-paths-.patch queue-5.10/tty-serial-samsung_tty-fix-a-memory-leak-in-s3c24xx_serial_getclk-in-case-of-error.patch queue-5.10/pinctrl-bcm2835-handle-gpiochip_add_pin_range-errors.patch queue-5.10/fbdev-omapfb-lcd_mipid-fix-an-error-handling-path-in.patch queue-5.10/wifi-atmel-fix-an-error-handling-path-in-atmel_probe.patch queue-5.10/mfd-stmpe-only-disable-the-regulators-if-they-are-en.patch queue-5.10/rtc-st-lpc-release-some-resources-in-st_rtc_probe-in.patch queue-5.10/usb-dwc3-meson-g12a-fix-an-error-handling-path-in-dw.patch queue-5.10/wifi-wl3501_cs-fix-an-error-handling-path-in-wl3501_.patch