• Jarkko Sakkinen's avatar
    tpm_vtpm_proxy: fix address space of a user pointer in vtpmx_fops_ioctl() · 9da7e787
    Jarkko Sakkinen authored
    When running make C=2 M=drivers/char/tpm/
    
      CC [M]  drivers/char/tpm//tpm_crb.o
      CHECK   drivers/char/tpm//tpm_vtpm_proxy.c
    drivers/char/tpm//tpm_vtpm_proxy.c:552:32: warning: incorrect type in assignment (different address spaces)
    drivers/char/tpm//tpm_vtpm_proxy.c:552:32:    expected struct vtpm_proxy_new_dev *vtpm_new_dev_p
    drivers/char/tpm//tpm_vtpm_proxy.c:552:32:    got void [noderef] <asn:1>*argp
    drivers/char/tpm//tpm_vtpm_proxy.c:553:51: warning: incorrect type in argument 2 (different address spaces)
    drivers/char/tpm//tpm_vtpm_proxy.c:553:51:    expected void const [noderef] <asn:1>*from
    drivers/char/tpm//tpm_vtpm_proxy.c:553:51:    got struct vtpm_proxy_new_dev *vtpm_new_dev_p
    drivers/char/tpm//tpm_vtpm_proxy.c:559:34: warning: incorrect type in argument 1 (different address spaces)
    drivers/char/tpm//tpm_vtpm_proxy.c:559:34:    expected void [noderef] <asn:1>*to
    drivers/char/tpm//tpm_vtpm_proxy.c:559:34:    got struct vtpm_proxy_new_dev *vtpm_new_dev_p
    
    The __user annotation was missing from the corresponding variable.
    
    Fixes: 794c38e01358 ("tpm: Proxy driver for supporting multiple emulated TPMs")
    Signed-off-by: default avatarJarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
    Tested-by: default avatarStefan Berger <stefanb@linux.vnet.ibm.com>
    9da7e787
tpm_vtpm_proxy.c 13.9 KB