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Date:	Thu, 20 Dec 2012 07:49:18 -0800
From:	Linus Torvalds <>
To:, Chris Ball <>
Cc:	Greg KH <>,
	Linux Kernel Mailing List <>,
	Linux Driver Project <>,
Subject: Re: [PATCH] mmc:core:if detect mmc card remove,don't wait for req done


On Thu, Dec 20, 2012 at 1:32 AM,  <> wrote:
>         I find a bug about mmc/core/core.c, and send you a patch which I fix
> this bug.
>         In fact, the bug is a low probability of occurrence.
>         Hope you help me to analyze it and discuss with me.

I've added the proper people - Chris Ball and linux-mmc - to the
participants list.

I also wanted to check with you: the commit message implies that this
can cause an IO timeout and then a call to
msmsdcc_start_command_deferred() with a NULL cmd->mrq. Which I assume
results in a NULL pointer dereference and Oops, but that wasn't
spelled out.

Chris, please give it a look, and perhaps edit the commit message a bit.


Download attachment "0001-mmc-core.patch" of type "application/octet-stream" (2056 bytes)

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