net/mlx5: Fix use-after-free
_rule_ is being freed and then dereferenced by accessing rule->ctx Fix this by copying the value returned by PTR_ERR(rule->ctx) into a local variable for its safe use after freeing _rule_ Addresses-Coverity-ID: 1466041 ("Read from pointer after free") Fixes: 05564d0a ("net/mlx5: Add flow-steering commands for FPGA IPSec implementation") Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Acked-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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