lkml.org 
[lkml]   [2012]   [Mar]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 10/11] android: staging: ram_console: fix crash in ram_console_late_init
    Date
    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>
    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


    \
     
     \ /
      Last update: 2012-03-08 02:37    [W:0.021 / U:0.788 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site