[PATCH] IPMI: fix occasional oops on module unload

Olaf Kirch of SuSE tracked down a problem where module unloads of the IPMI
driver would occasionally result in Oopses.  He tracked that down to a
variable that wasn't always initialized properly in some situations.  This
patch initializes that variable.  Olaf sent a patch that kzalloc-ed the
data, but this structure is large enough that I would perfer to not do
that.  Thanks Olaf!

Signed-off-by: Corey Minyard <minyard@acm.org>
Cc: Olaf Kirch <okir@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index 0aa5d60..843d34c 100644 (file)
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -3428,6 +3428,7 @@ struct ipmi_recv_msg *ipmi_alloc_recv_msg(void)
 
        rv = kmalloc(sizeof(struct ipmi_recv_msg), GFP_ATOMIC);
        if (rv) {
+               rv->user = NULL;
                rv->done = free_recv_msg;
                atomic_inc(&recv_msg_inuse_count);
        }