diff options
| author |   Corey Minyard <cminyard@mvista.com> | 2018-05-24 15:07:29 -0500 |
|---|---|---|
| committer | Corey Minyard <cminyard@mvista.com> | 2018-05-24 15:08:30 -0500 |
| commit | 048f7c3e352eeef50ed2c14dd89683f8a3af2f9b (patch) | |
| tree | 1b7150f56e761fa28b8e4fee5bfdf05f8e03f60a /drivers/char/ipmi | |
| parent | ipmi: NPCM7xx KCS BMC: enable interrupt to the host (diff) | |
| download | linux-dev-048f7c3e352eeef50ed2c14dd89683f8a3af2f9b.tar.xz linux-dev-048f7c3e352eeef50ed2c14dd89683f8a3af2f9b.zip | |
ipmi: Properly release srcu locks on error conditions
When SRCU was added for handling hotplug, some error conditions
were not handled properly.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Diffstat (limited to 'drivers/char/ipmi')
| -rw-r--r-- | drivers/char/ipmi/ipmi_msghandler.c | 43 |
1 files changed, 25 insertions, 18 deletions
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c index 606d561fe0e2..51832b8a2c62 100644 --- a/drivers/char/ipmi/ipmi_msghandler.c +++ b/drivers/char/ipmi/ipmi_msghandler.c @@ -1291,18 +1291,19 @@ int ipmi_set_my_address(struct ipmi_user *user, unsigned int channel, unsigned char address) { - int index; + int index, rv = 0; user = acquire_ipmi_user(user, &index); if (!user) return -ENODEV; if (channel >= IPMI_MAX_CHANNELS) - return -EINVAL; - user->intf->addrinfo[channel].address = address; + rv = -EINVAL; + else + user->intf->addrinfo[channel].address = address; release_ipmi_user(user, index); - return 0; + return rv; } EXPORT_SYMBOL(ipmi_set_my_address); @@ -1310,18 +1311,19 @@ int ipmi_get_my_address(struct ipmi_user *user, unsigned int channel, unsigned char *address) { - int index; + int index, rv = 0; user = acquire_ipmi_user(user, &index); if (!user) return -ENODEV; if (channel >= IPMI_MAX_CHANNELS) - return -EINVAL; - *address = user->intf->addrinfo[channel].address; + rv = -EINVAL; + else + *address = user->intf->addrinfo[channel].address; release_ipmi_user(user, index); - return 0; + return rv; } EXPORT_SYMBOL(ipmi_get_my_address); @@ -1329,15 +1331,16 @@ int ipmi_set_my_LUN(struct ipmi_user *user, unsigned int channel, unsigned char LUN) { - int index; + int index, rv = 0; user = acquire_ipmi_user(user, &index); if (!user) return -ENODEV; if (channel >= IPMI_MAX_CHANNELS) - return -EINVAL; - user->intf->addrinfo[channel].lun = LUN & 0x3; + rv = -EINVAL; + else + user->intf->addrinfo[channel].lun = LUN & 0x3; release_ipmi_user(user, index); return 0; @@ -1348,18 +1351,19 @@ int ipmi_get_my_LUN(struct ipmi_user *user, unsigned int channel, unsigned char *address) { - int index; + int index, rv = 0; user = acquire_ipmi_user(user, &index); if (!user) return -ENODEV; if (channel >= IPMI_MAX_CHANNELS) - return -EINVAL; - *address = user->intf->addrinfo[channel].lun; + rv = -EINVAL; + else + *address = user->intf->addrinfo[channel].lun; release_ipmi_user(user, index); - return 0; + return rv; } EXPORT_SYMBOL(ipmi_get_my_LUN); @@ -1540,8 +1544,10 @@ int ipmi_register_for_cmd(struct ipmi_user *user, return -ENODEV; rcvr = kmalloc(sizeof(*rcvr), GFP_KERNEL); - if (!rcvr) - return -ENOMEM; + if (!rcvr) { + rv = -ENOMEM; + goto out_release; + } rcvr->cmd = cmd; rcvr->netfn = netfn; rcvr->chans = chans; @@ -1559,10 +1565,11 @@ int ipmi_register_for_cmd(struct ipmi_user *user, list_add_rcu(&rcvr->link, &intf->cmd_rcvrs); - out_unlock: +out_unlock: mutex_unlock(&intf->cmd_rcvrs_mutex); if (rv) kfree(rcvr); +out_release: release_ipmi_user(user, index); return rv; |