kmsg_write returns with printk, so some programs may be confused by
a successful write() with a return value different than the buffer length.

# /bin/echo something > /dev/kmsg
/bin/echo: write error: Inappropriate ioctl for device

The drawbacks is that the printk return value can no more be quickly checked
from userspace.

Signed-off-by: Guillaume Chazarain <guichaz@yahoo.fr>

---
  mem.c |    5 ++++-
  1 files changed, 4 insertions(+), 1 deletion(-)

-- 
Guillaume