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Date: Wed, 7 Mar 2012 17:34:37 -0800 From: John Stultz <john.stultz@...aro.org> To: lkml <linux-kernel@...r.kernel.org> Cc: Colin Cross <ccross@...roid.com>, Greg KH <gregkh@...uxfoundation.org>, Android Kernel Team <kernel-team@...roid.com>, John Stultz <john.stultz@...aro.org> Subject: [PATCH 10/11] android: staging: ram_console: fix crash in ram_console_late_init From: Colin Cross <ccross@...roid.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@...uxfoundation.org> CC: Android Kernel Team <kernel-team@...roid.com> Signed-off-by: Colin Cross <ccross@...roid.com> Signed-off-by: John Stultz <john.stultz@...aro.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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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