tree 27225309b26e327b6b714fed294acac555f24a46
parent 93c5d741d14b86150e10100de3d85f999e77a03c
author Saubhik Mukherjee <saubhik.mukherjee@gmail.com> 1621863432 +0530
committer David S. Miller <davem@davemloft.net> 1621890032 -0700

net: appletalk: cops: Fix data race in cops_probe1

In cops_probe1(), there is a write to dev->base_addr after requesting an
interrupt line and registering the interrupt handler cops_interrupt().
The handler might be called in parallel to handle an interrupt.
cops_interrupt() tries to read dev->base_addr leading to a potential
data race. So write to dev->base_addr before calling request_irq().

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Saubhik Mukherjee <saubhik.mukherjee@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>