drivers/staging/kpc2000/kpc_dma/fileops.c:60:8-26: WARNING: casting value returned by memory allocation function to (struct aio_cb_data *) is useless.

[kbuild test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   5ac94332248ee017964ba368cdda4ce647e3aba7
commit: 7df95299b94a63ec67a6389fc02dc25019a80ee8 staging: kpc2000: Add DMA driver
date:   3 weeks ago

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@xxxxxxxxx>


coccinelle warnings: (new ones prefixed by >>)

>> drivers/staging/kpc2000/kpc_dma/fileops.c:60:8-26: WARNING: casting value returned by memory allocation function to (struct aio_cb_data *) is useless.

Please review and possibly fold the followup patch.

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