drivers/net/tlan.c: compilation warning fix
Add a check for the pci_register_driver() return value. Removed unused
variable pad_allocated.
The aim of this patch is to remove the following warning messages:
drivers/net/tlan.c: In function 'tlan_probe':
drivers/net/tlan.c:486: warning: ignoring return value of 'pci_register_driver', declared with attribute warn_unused_result
Signed-off-by: Leonardo Potenza <lpotenza@inwind.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/tlan.c b/drivers/net/tlan.c
index c99ce74..3af5b92 100644
--- a/drivers/net/tlan.c
+++ b/drivers/net/tlan.c
@@ -465,7 +465,7 @@
static int __init tlan_probe(void)
{
- static int pad_allocated;
+ int rc = -ENODEV;
printk(KERN_INFO "%s", tlan_banner);
@@ -473,17 +473,22 @@
if (TLanPadBuffer == NULL) {
printk(KERN_ERR "TLAN: Could not allocate memory for pad buffer.\n");
- return -ENOMEM;
+ rc = -ENOMEM;
+ goto err_out;
}
memset(TLanPadBuffer, 0, TLAN_MIN_FRAME_SIZE);
- pad_allocated = 1;
TLAN_DBG(TLAN_DEBUG_PROBE, "Starting PCI Probe....\n");
/* Use new style PCI probing. Now the kernel will
do most of this for us */
- pci_register_driver(&tlan_driver);
+ rc = pci_register_driver(&tlan_driver);
+
+ if (rc != 0) {
+ printk(KERN_ERR "TLAN: Could not register pci driver.\n");
+ goto err_out_pci_free;
+ }
TLAN_DBG(TLAN_DEBUG_PROBE, "Starting EISA Probe....\n");
TLan_EisaProbe();
@@ -493,11 +498,17 @@
tlan_have_pci, tlan_have_eisa);
if (TLanDevicesInstalled == 0) {
- pci_unregister_driver(&tlan_driver);
- pci_free_consistent(NULL, TLAN_MIN_FRAME_SIZE, TLanPadBuffer, TLanPadBufferDMA);
- return -ENODEV;
+ rc = -ENODEV;
+ goto err_out_pci_unreg;
}
return 0;
+
+err_out_pci_unreg:
+ pci_unregister_driver(&tlan_driver);
+err_out_pci_free:
+ pci_free_consistent(NULL, TLAN_MIN_FRAME_SIZE, TLanPadBuffer, TLanPadBufferDMA);
+err_out:
+ return rc;
}