net/mlx5_core: Check the return value of mlx5_command_exec()
net/mlx5_core: Check the return value of mlx5_command_exec()

mlx5_cmd_exec() might fail - need to check return value.

Signed-off-by: Haggai Abramovsky <fad80fd44a50e5e977f27befe082b7e9404f5356@mellanox.com>
Signed-off-by: Saeed Mahameed <0a17f7549b0bac96abb27a38bc47f122efaba664@mellanox.com>
Signed-off-by: Amir Vadai <3780882ee6ebd9d2578cec41b2fe98d5a68e15d1@mellanox.com>
Signed-off-by: David S. Miller <fe08d3c717adf2ae63592e4c9aec6e3e404d8e3e@davemloft.net>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs