This is a note to let you know that I've just added the patch titled
mmc: atmel-mci: fix oops in atmci_tasklet_func
to the 3.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mmc-atmel-mci-fix-oops-in-atmci_tasklet_func.patch
and it can be found in the queue-3.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From fbd986cd420d1deeabf1039ec4e74075a5639db5 Mon Sep 17 00:00:00 2001
From: Rodolfo Giometti <giometti@xxxxxxxxxxxx>
Date: Mon, 9 Sep 2013 17:31:59 +0200
Subject: mmc: atmel-mci: fix oops in atmci_tasklet_func
From: Rodolfo Giometti <giometti@xxxxxxxxxxxx>
commit fbd986cd420d1deeabf1039ec4e74075a5639db5 upstream.
In some cases, a NULL pointer dereference happens because data is NULL when
STATE_END_REQUEST case is reached in atmci_tasklet_func.
Signed-off-by: Rodolfo Giometti <giometti@xxxxxxxxxxxx>
Acked-by: Ludovic Desroches <ludovic.desroches@xxxxxxxxx>
Acked-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxx>
Signed-off-by: Chris Ball <cjb@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/mmc/host/atmel-mci.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -1810,12 +1810,14 @@ static void atmci_tasklet_func(unsigned
if (unlikely(status)) {
host->stop_transfer(host);
host->data = NULL;
- if (status & ATMCI_DTOE) {
- data->error = -ETIMEDOUT;
- } else if (status & ATMCI_DCRCE) {
- data->error = -EILSEQ;
- } else {
- data->error = -EIO;
+ if (data) {
+ if (status & ATMCI_DTOE) {
+ data->error = -ETIMEDOUT;
+ } else if (status & ATMCI_DCRCE) {
+ data->error = -EILSEQ;
+ } else {
+ data->error = -EIO;
+ }
}
}
Patches currently in stable-queue which might be from giometti@xxxxxxxxxxxx are
queue-3.12/mmc-atmel-mci-fix-oops-in-atmci_tasklet_func.patch
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