tree ef3818b8d118edf6f815b1dfaa5934071db40478
parent a56fefc1202a3f2f9db893ecf8717b2352280939
author Daniel Mentz <danielmentz@google.com> 1479437422 -0800
committer Daniel Mentz <danielmentz@google.com> 1479507555 -0800

printk: Flush incomplete log messages before reboot

The following pr_emerg() statement in kernel/panic.c is missing a line
feed character as the last character in the format string:

pr_emerg("Rebooting in %d seconds..", panic_timeout);

As a result, the message is not immediately stored in the log buffer and
is subsequently lost unless another printk() statement is executed prior
to the reboot.

Let's flush these incomplete log lines prior to reboot to ensure that
the string

"Rebooting in 3 seconds.."

is preserved as the last log message in the buffer. Otherwise, a user
might assume that printk_persist lost the last few message prior to
reboot.

Change-Id: I2528de7fd297a8ce9186b8a2ffe18b365773a9e9