Potential uninitialized variables in regulator: ltc3589
From: Yizhuo Zhai
Date: Fri Oct 04 2019 - 00:59:30 EST
Hi All:
drivers/regulator/ltc3589.c
Variable "irqstat" in function ltc3589_isr() could be uninitialized if
regmap_read() returns -EINVAL. But it's directly used later without
the return check, which is potentially unsafe.
Also, we cannot simply return -EINVAL in ltc3589_isr() because
the error code is out of the return type: irqreturn_t.
Thanks for your time to check this case.
--
Kind Regards,
Yizhuo Zhai
Computer Science, Graduate Student
University of California, Riverside