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ipmi:ssif: Add missing unlock in error branch

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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>
This commit is contained in:
Corey Minyard 2017-06-30 07:18:08 -05:00 committed by Greg Kroah-Hartman
parent 685e124ebc
commit 1b9008cdae
1 changed files with 5 additions and 0 deletions
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5
drivers/char/ipmi/ipmi_ssif.c
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@ -762,6 +762,11 @@ 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 {