net/smc: check variable before dereferencing in smc_close.c
smc->clcsock and smc->clcsock->sk are used before the check if they can be dereferenced. Fix this by checking the variables first. Fixes: a60a2b1e ("net/smc: reduce active tcp_listen workers") Reported-by:kernel test robot <lkp@intel.com> Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Karsten Graul <kgraul@linux.ibm.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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