Messages in this thread Patch in this message |  | | | From | John Stultz <> | | Subject | [PATCH 12/13] android: staging: ram_console: fix crash in ram_console_late_init | | Date | Wed, 7 Mar 2012 13:58:22 -0800 |
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From: Colin Cross <ccross@android.com>
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: Greg KH <gregkh@linuxfoundation.org> CC: Android Kernel Team <kernel-team@android.com> Change-Id: Idff0f690406cdb2fe977bab64a39dc8b40dd4566 Signed-off-by: Colin Cross <ccross@android.com> Signed-off-by: John Stultz <john.stultz@linaro.org> --- drivers/staging/android/ram_console.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/drivers/staging/android/ram_console.c b/drivers/staging/android/ram_console.c index 29d347e..d956b84 100644 --- a/drivers/staging/android/ram_console.c +++ b/drivers/staging/android/ram_console.c @@ -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; -- 1.7.3.2.146.gca209
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