diff options
| author | Corey Minyard <cminyard@mvista.com> | 2017-06-30 07:18:08 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-07-27 15:06:06 -0700 |
| commit | fa696eea4d8dbea4c2b83c86c10fe5c15a5b7a9a (patch) | |
| tree | fd75006162485e51cb2b90d70c02c3f2edad1245 | |
| parent | 8878c53244f5649b9065fd2dba5b4cb5909e84d3 (diff) | |
ipmi:ssif: Add missing unlock in error branch
commit 4495ec6d770e1bca7a04e93ac453ab6720c56c5d upstream.
When getting flags, a response to a different message would
result in a deadlock because of a missing unlock. Add that
unlock and a comment. Found by static analysis.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/char/ipmi/ipmi_ssif.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c index 0d83cfb9708f..f53e8ba2c718 100644 --- a/drivers/char/ipmi/ipmi_ssif.c +++ b/drivers/char/ipmi/ipmi_ssif.c @@ -758,6 +758,11 @@ static void msg_done_handler(struct ssif_info *ssif_info, int result, result, len, data[2]); } else if (data[0] != (IPMI_NETFN_APP_REQUEST | 1) << 2 || data[1] != IPMI_GET_MSG_FLAGS_CMD) { + /* + * Don't abort here, maybe it was a queued + * response to a previous command. + */ + ipmi_ssif_unlock_cond(ssif_info, flags); pr_warn(PFX "Invalid response getting flags: %x %x\n", data[0], data[1]); } else { |