net: core: devlink: use right genl user_ptr when handling port param get/set
Fix incorrect user_ptr dereferencing when handling port param get/set: idx [0] stores the 'struct devlink' pointer; idx [1] stores the 'struct devlink_port' pointer; Fixes: 637989b5 ("devlink: Always use user_ptr[0] for devlink and simplify post_doit") CC: Parav Pandit <parav@mellanox.com> Signed-off-by: Oleksandr Mazur <oleksandr.mazur@plvision.eu> Signed-off-by: Vadym Kochan <vadym.kochan@plvision.eu> Link: https://lore.kernel.org/r/20210119085333.16833-1-vadym.kochan@plvision.euSigned-off-by: Jakub Kicinski <kuba@kernel.org>
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