i2c: nvidia-gpu: Use PTR_ERR_OR_ZERO() to simplify code
PTR_ERR_OR_ZERO contains if(IS_ERR(...)) + PTR_ERR. Generated by: scripts/coccinelle/api/ptr_ret.cocci Signed-off-by: NAishwarya Ramakrishnan <aishwaryarj100@gmail.com> Reviewed-by: NAjay Gupta <ajayg@nvidia.com> Signed-off-by: NWolfram Sang <wsa@kernel.org>
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