depca: fix warning in drivers/net/depca.c

fix warning:

  drivers/net/depca.c: In function ‘depca_eisa_probe’:
  drivers/net/depca.c:1564: warning: ‘mem_start’ may be used uninitialized in this function

this seems to be a real bug - depca_eisa_probe() does not check
for failure. Add it, symmetric to depca_isa_probe().

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 1 deletions

diff --git a/drivers/net/depca.c b/drivers/net/depca.c
index ec34f03cb982..e4cef491dc73 100644
--- a/drivers/net/depca.c
+++ b/drivers/net/depca.c
@@ -1556,6 +1556,7 @@ static int __init depca_isa_probe (struct platform_device *device)
 #ifdef CONFIG_EISA
 static int __init depca_eisa_probe (struct device *device)
 {
+        enum depca_type adapter = unknown;
         struct eisa_device *edev;
         struct net_device *dev;
         struct depca_private *lp;
@@ -1574,7 +1575,11 @@ static int __init depca_eisa_probe (struct device *device)
          * the EISA configuration structures (yet... :-), just rely on
          * the ISA probing to sort it out... */
 
-        depca_shmem_probe (&mem_start);
+        adapter = depca_shmem_probe (&mem_start);
+        if (adapter == unknown) {
+                status = -ENODEV;
+                goto out_free;
+        }
 
         dev->base_addr = ioaddr;
         dev->irq = irq;