Commit 3a21138d authored Mar 07, 2012 by Colin Cross Committed by Greg Kroah-Hartman Mar 08, 2012

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>

parent a15d0b36

drivers/staging/android/ram_console.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -150,6 +150,9 @@ static int __init ram_console_late_init(void)
		struct proc_dir_entry *entry;
		struct persistent_ram_zone *prz = ram_console_zone;

		if (!prz)
		return 0;

		if (persistent_ram_old_size(prz) == 0)
		return 0;