korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-24 12:44:11 +08:00
Code Issues Packages Projects Releases Wiki Activity

ipmi:ssif: Add missing unlock in error branch

Browse Source 
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>
Cc: stable@vger.kernel.org # 3.19
Signed-off-by: Corey Minyard <cminyard@mvista.com>
This commit is contained in:
Corey Minyard 2017-06-30 07:18:08 -05:00
parent 1e7a75f74a
commit 4495ec6d77
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/char/ipmi/ipmi_ssif.c
View File

@ -766,6 +766,11 @@ 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 {