Thread (3 messages) 3 messages, 2 authors, 2018-09-11

Re: [PATCH] mfd: menelaus: fix possible race condition and leak

From: Lee Jones <hidden>
Date: 2018-09-11 15:40:01
Also in: linux-omap, lkml

On Sun, 09 Sep 2018, Alexandre Belloni wrote:
The IRQ work is added before the struct rtc is allocated and registered,
but this struct is used in the IRQ handler. This may lead to a NULL pointer
dereference.

Switch to devm_rtc_allocate_device/rtc_register_device to allocate the rtc
before calling menelaus_add_irq_work.

Also, this solves a possible leak as the RTC is never released.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---

Lee,

If that is ok with you, I would like to take this patch through the RTC
tree. So I can have a follow up patch removing rtc_device_register().

Thanks

 drivers/mfd/menelaus.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)
Applied, thanks.

-- 
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help