From 3eb8e61c4d95ae9243970fae4ecd1b947ea8c6fc Mon Sep 17 00:00:00 2001 From: Tony LIU Date: Fri, 20 Jul 2012 10:11:06 +0800 Subject: [PATCH] ENGR00217717 mfgtool firmware will crash during mfgtool running - the root cause of this issue is there is no protection for the resource which will be accessed by multiple thread Signed-off-by: Tony LIU --- drivers/usb/gadget/fsl_updater.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/usb/gadget/fsl_updater.c b/drivers/usb/gadget/fsl_updater.c index 01b35f31cba7..39175d6d4c48 100644 --- a/drivers/usb/gadget/fsl_updater.c +++ b/drivers/usb/gadget/fsl_updater.c @@ -1,7 +1,7 @@ /* * Freescale UUT driver * - * Copyright 2008-2011 Freescale Semiconductor, Inc. + * Copyright 2008-2012 Freescale Semiconductor, Inc. * Copyright 2008-2009 Embedded Alley Solutions, Inc All Rights Reserved. */ @@ -71,9 +71,11 @@ static u32 count_list(struct list_head *l) u32 count = 0; struct list_head *tmp; + mutex_lock(&utp_context.lock); list_for_each(tmp, l) { count++; } + mutex_unlock(&utp_context.lock); return count; } -- 2.39.5