malloc in kernel

Question

When I try to use malloc in a kernel module I get an error message from the compiler. My code:

res=(ListNode*)malloc(sizeof(ListNode));
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Answer 1

Indeed, you should use kmalloc and friends, check the linux kernel for examples. e.g.: http://lxr.linux.no/linux+v3.0/drivers/infiniband/hw/mthca/mthca_provider.c#L1033