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From: Masami Hiramatsu <mhiramat@kernel.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Steven Rostedt <rostedt@goodmis.org>,
	Mike Rapoport <rppt@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Ingo Molnar <mingo@kernel.org>, Linux-MM <linux-mm@kvack.org>,
	Vlastimil Babka <vbabka@suse.cz>
Subject: Re: [PATCH v2 1/5] bootconfig: Fix to check the xbc_node is used before free it
Date: Wed, 15 Sep 2021 10:44:52 +0900	[thread overview]
Message-ID: <20210915104452.9a3cfd0648a4edeca4583c84@kernel.org> (raw)
In-Reply-To: <CAHk-=whJAyOZN16BzB-YS8zYVNfSsRcCnMuvzfz6CMfuknwPDw@mail.gmail.com>

On Tue, 14 Sep 2021 18:12:28 -0700
Linus Torvalds <torvalds@linux-foundation.org> wrote:

> On Tue, Sep 14, 2021 at 5:53 PM Masami Hiramatsu <mhiramat@kernel.org> wrote:
> >
> > Fix to check the xbc_node is used before calling memblock_free()
> > because passing NULL to phys_addr() will cause a panic.
> 
> No.
> 
> That's the previous bad situation.
> 
> The whole point of memblock_free_ptr() is that it actually acts the
> way a memory freeing function *should*, and has no problems with NULL
> pointers.

Oops, sorry. Please drop it.

> 
> >    - Rebase on top of Linus tree.
> 
> Please don't do a mindless rebase, take the actual changes into account.

Sorry about that. I missed the change.

Thank you,

> 
>          Linus


-- 
Masami Hiramatsu <mhiramat@kernel.org>

  reply	other threads:[~2021-09-15  1:44 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-15  0:52 [PATCH v2 0/5] bootconfig: Fixes to bootconfig memory management Masami Hiramatsu
2021-09-15  0:53 ` [PATCH v2 1/5] bootconfig: Fix to check the xbc_node is used before free it Masami Hiramatsu
2021-09-15  1:12   ` Linus Torvalds
2021-09-15  1:44     ` Masami Hiramatsu [this message]
2021-09-15  0:53 ` [PATCH v2 2/5] bootconfig: init: Fix memblock leak in xbc_make_cmdline() Masami Hiramatsu
2021-09-15  0:53 ` [PATCH v2 3/5] bootconfig: init: Fix memblock leak in setup_boot_config() Masami Hiramatsu
2021-09-15  0:53 ` [PATCH v2 4/5] bootconfig: Free copied bootconfig data after boot Masami Hiramatsu
2021-09-15  1:13   ` Linus Torvalds
2021-09-15  1:45     ` Masami Hiramatsu
2021-09-15  0:53 ` [PATCH v2 5/5] tools/bootconfig: Define memblock_free_ptr() to fix build error Masami Hiramatsu
2021-09-15  1:21   ` Linus Torvalds
2021-09-15  1:47     ` Masami Hiramatsu
2021-09-15  1:57       ` Linus Torvalds
2021-09-15  3:00         ` Masami Hiramatsu

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