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* [PATCH] drivers: mtd: Fixed breaking list in __mtd_del_partition.
@ 2021-10-25 20:57 Andreas Oetken
  2021-10-26  7:31 ` Miquel Raynal
  0 siblings, 1 reply; 3+ messages in thread
From: Andreas Oetken @ 2021-10-25 20:57 UTC (permalink / raw)
  To: Miquel Raynal, Richard Weinberger, Vignesh Raghavendra
  Cc: linux-mtd, linux-kernel, Andreas Oetken

Not the child partition should be removed from the partition list
but the partition itself. Otherwise the partition list gets broken
and any subsequent remove operations leads to a kernel panic.

Signed-off-by: Andreas Oetken <andreas.oetken@siemens-energy.com>
---
 drivers/mtd/mtdpart.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 95d47422bbf20..5725818fa199f 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -313,7 +313,7 @@ static int __mtd_del_partition(struct mtd_info *mtd)
 	if (err)
 		return err;
 
-	list_del(&child->part.node);
+	list_del(&mtd->part.node);
 	free_partition(mtd);
 
 	return 0;
-- 
2.30.2


^ permalink raw reply related	[flat|nested] 3+ messages in thread

* Re: [PATCH] drivers: mtd: Fixed breaking list in __mtd_del_partition.
  2021-10-25 20:57 [PATCH] drivers: mtd: Fixed breaking list in __mtd_del_partition Andreas Oetken
@ 2021-10-26  7:31 ` Miquel Raynal
  0 siblings, 0 replies; 3+ messages in thread
From: Miquel Raynal @ 2021-10-26  7:31 UTC (permalink / raw)
  To: Andreas Oetken
  Cc: Richard Weinberger, Vignesh Raghavendra, linux-mtd, linux-kernel,
	Andreas Oetken

Hi Andreas,

ennoerlangen@gmail.com wrote on Mon, 25 Oct 2021 22:57:24 +0200:

> Not the child partition should be removed from the partition list
> but the partition itself. Otherwise the partition list gets broken
> and any subsequent remove operations leads to a kernel panic.
> 

Can you please Add a couple of Fixes: + Cc: stable tags?

> Signed-off-by: Andreas Oetken <andreas.oetken@siemens-energy.com>
> ---
>  drivers/mtd/mtdpart.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
> index 95d47422bbf20..5725818fa199f 100644
> --- a/drivers/mtd/mtdpart.c
> +++ b/drivers/mtd/mtdpart.c
> @@ -313,7 +313,7 @@ static int __mtd_del_partition(struct mtd_info *mtd)
>  	if (err)
>  		return err;
>  
> -	list_del(&child->part.node);
> +	list_del(&mtd->part.node);
>  	free_partition(mtd);
>  
>  	return 0;


Thanks,
Miquèl

^ permalink raw reply	[flat|nested] 3+ messages in thread

* [PATCH] drivers: mtd: Fixed breaking list in __mtd_del_partition.
@ 2021-10-26  8:46 Andreas Oetken
  0 siblings, 0 replies; 3+ messages in thread
From: Andreas Oetken @ 2021-10-26  8:46 UTC (permalink / raw)
  To: Miquel Raynal, Richard Weinberger, Vignesh Raghavendra
  Cc: linux-mtd, linux-kernel, Andreas Oetken

Not the child partition should be removed from the partition list
but the partition itself. Otherwise the partition list gets broken
and any subsequent remove operations leads to a kernel panic.

Signed-off-by: Andreas Oetken <andreas.oetken@siemens-energy.com>
---
 drivers/mtd/mtdpart.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 95d47422bbf20..5725818fa199f 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -313,7 +313,7 @@ static int __mtd_del_partition(struct mtd_info *mtd)
 	if (err)
 		return err;
 
-	list_del(&child->part.node);
+	list_del(&mtd->part.node);
 	free_partition(mtd);
 
 	return 0;
-- 
2.30.2


^ permalink raw reply related	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2021-10-26  8:46 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2021-10-25 20:57 [PATCH] drivers: mtd: Fixed breaking list in __mtd_del_partition Andreas Oetken
2021-10-26  7:31 ` Miquel Raynal
2021-10-26  8:46 Andreas Oetken

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