staging: android: ram_console: fix crash in ram_console_late_init
authorColin Cross <ccross@android.com>
Thu, 8 Mar 2012 01:34:37 +0000 (17:34 -0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 8 Mar 2012 17:37:09 +0000 (09:37 -0800)
commit3a21138d3f76296ad070a3692d72eb529e7d5d2c
treefb4f461b4df1709ce06320256d76d7fdcc75c9d9
parenta15d0b365e9bbf04dacb44fbe69d15f6594460e1
staging: android: ram_console: fix crash in ram_console_late_init

If the persistent ram buffer is not available, ram_console_late_init
would crash when dereferencing ram_console_zone.  Return early if
ram console was not initialized.

CC: Android Kernel Team <kernel-team@android.com>
Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/android/ram_console.c