Return status of mnt_context_mount when helper is used

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Hello,

When trying to mount samba shares using *mnt_context_mount*, the
*mount.cifs* helper is called and used. This allows for automatic
resolving of hostnames.

However, if the hostname is not valid and the resolve fails,
the call *mnt_context_mount* is still successful. Using
*mnt_init_debug*, the mount.cifs helper returns an error code but this
is not propagated to the status of mnt_context_mount or
mnt_context_get_status.

This has been tried with util-linux 2.20.1 and the latest util-linux
from git (as of today).

Is there a way to check the return status of the helper?

START TRACE

mount error: could not resolve address for pmanalo-pc2: Unknown error
libmount:      CXT: [0x811010]: /sbin/mount.cifs executed [status=1]
libmount:      CXT: [0x811010]: don't update: external helper
mount_cifs: mnt_context_mount return code = 0 status = 1
mount_cifs: error:
libmount:      CXT: [0x811010]: <---- reset [status=1] ---->
libmount:    CACHE: [0x811350]: free
libmount:      CXT: [0x811010]: <---- free

END TRACE

Thanks,
Amit

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