From: Linus Torvalds <torvalds@linux-foundation.org>
To: Masami Hiramatsu <mhiramat@kernel.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: Tue, 14 Sep 2021 18:12:28 -0700 [thread overview]
Message-ID: <CAHk-=whJAyOZN16BzB-YS8zYVNfSsRcCnMuvzfz6CMfuknwPDw@mail.gmail.com> (raw)
In-Reply-To: <163166718582.510331.11732633028925882626.stgit@devnote2>
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.
> - Rebase on top of Linus tree.
Please don't do a mindless rebase, take the actual changes into account.
Linus
next prev parent reply other threads:[~2021-09-15 1:12 UTC|newest]
Thread overview: 18+ 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 [this message]
2021-09-15 1:12 ` Linus Torvalds
2021-09-15 1:44 ` Masami Hiramatsu
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 1:13 ` 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 1:21 ` Linus Torvalds
2021-09-15 1:47 ` Masami Hiramatsu
2021-09-15 1:57 ` Linus Torvalds
2021-09-15 1:57 ` Linus Torvalds
2021-09-15 3:00 ` Masami Hiramatsu
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