fcoe: Fix smatch warning in fcoe_fdmi_info function
This patch fixes a smatch warning as below:
smatch warnings:
drivers/scsi/fcoe/fcoe.c:782 fcoe_fdmi_info() warn: 'fdmi' puts 896 bytes on
stack
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Neerav Parikh <Neerav.Parikh@intel.com>
Tested-by: Jack Morgan <jack.morgan@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
index 32ae6c6..3336e57 100644
--- a/drivers/scsi/fcoe/fcoe.c
+++ b/drivers/scsi/fcoe/fcoe.c
@@ -774,7 +774,6 @@
struct fcoe_port *port;
struct net_device *realdev;
int rc;
- struct netdev_fcoe_hbainfo fdmi;
port = lport_priv(lport);
fcoe = port->priv;
@@ -788,9 +787,13 @@
return;
if (realdev->netdev_ops->ndo_fcoe_get_hbainfo) {
- memset(&fdmi, 0, sizeof(fdmi));
+ struct netdev_fcoe_hbainfo *fdmi;
+ fdmi = kzalloc(sizeof(*fdmi), GFP_KERNEL);
+ if (!fdmi)
+ return;
+
rc = realdev->netdev_ops->ndo_fcoe_get_hbainfo(realdev,
- &fdmi);
+ fdmi);
if (rc) {
printk(KERN_INFO "fcoe: Failed to retrieve FDMI "
"information from netdev.\n");
@@ -800,38 +803,39 @@
snprintf(fc_host_serial_number(lport->host),
FC_SERIAL_NUMBER_SIZE,
"%s",
- fdmi.serial_number);
+ fdmi->serial_number);
snprintf(fc_host_manufacturer(lport->host),
FC_SERIAL_NUMBER_SIZE,
"%s",
- fdmi.manufacturer);
+ fdmi->manufacturer);
snprintf(fc_host_model(lport->host),
FC_SYMBOLIC_NAME_SIZE,
"%s",
- fdmi.model);
+ fdmi->model);
snprintf(fc_host_model_description(lport->host),
FC_SYMBOLIC_NAME_SIZE,
"%s",
- fdmi.model_description);
+ fdmi->model_description);
snprintf(fc_host_hardware_version(lport->host),
FC_VERSION_STRING_SIZE,
"%s",
- fdmi.hardware_version);
+ fdmi->hardware_version);
snprintf(fc_host_driver_version(lport->host),
FC_VERSION_STRING_SIZE,
"%s",
- fdmi.driver_version);
+ fdmi->driver_version);
snprintf(fc_host_optionrom_version(lport->host),
FC_VERSION_STRING_SIZE,
"%s",
- fdmi.optionrom_version);
+ fdmi->optionrom_version);
snprintf(fc_host_firmware_version(lport->host),
FC_VERSION_STRING_SIZE,
"%s",
- fdmi.firmware_version);
+ fdmi->firmware_version);
/* Enable FDMI lport states */
lport->fdmi_enabled = 1;
+ kfree(fdmi);
} else {
lport->fdmi_enabled = 0;
printk(KERN_INFO "fcoe: No FDMI support.\n");