Messages in this thread Patch in this message | | | Date | Thu, 18 Feb 2016 22:41:32 -0800 | From | Calvin Owens <> | Subject | [PATCH][QUESTION] Intentional memory leak in ipmi_msghandler? |
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Hello,
I've got a few boxes that are leaking memory in handle_new_recv_msgs() in ipmi_msghandler. AFAICS this is intentional, there's even an explicit counter that tracks the number of times smi_msg is leaked.
I'm guessing there was a reason for doing this, but there wasn't any discussion about it on LKML when the patch was accepted. Can you clarify why something like the below patch won't work? I tried it on one of my leaky boxes and nothing obviously horrible happened.
Thanks, Calvin
----8<---- From: Calvin Owens <calvinowens@fb.com> Subject: [PATCH] ipmi_msghandler: Don't leak memory on errors
Signed-off-by: Calvin Owens <calvinowens@fb.com> --- drivers/char/ipmi/ipmi_msghandler.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c index 94fb407..ed82ffa 100644 --- a/drivers/char/ipmi/ipmi_msghandler.c +++ b/drivers/char/ipmi/ipmi_msghandler.c @@ -3834,10 +3834,7 @@ static void handle_new_recv_msgs(ipmi_smi_t intf) break; } else { list_del(&smi_msg->link); - if (rv == 0) - /* Message handled */ - ipmi_free_smi_msg(smi_msg); - /* If rv < 0, fatal error, del but don't free. */ + ipmi_free_smi_msg(smi_msg); } } if (!run_to_completion) -- 2.4.6
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