switch: fix switch-robo device reference counting

Fix incorrect device reference counting by switch-robo.

Signed-off-by: George Kashperko <george@znau.edu.ua>
SVN-Revision: 25619

diff --git a/package/switch/Makefile b/package/switch/Makefile
index a2baf99d1b97017ca4bff651d2edad8bebd072dd..17158dac8bcba8eea4b26c4a66d2d8975600de98 100644 (file)
--- a/package/switch/Makefile
+++ b/package/switch/Makefile
@@ -1,5 +1,5 @@
 # 
-# Copyright (C) 2006 OpenWrt.org
+# Copyright (C) 2006-2011 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=kmod-switch
-PKG_RELEASE:=3
+PKG_RELEASE:=4
 
 include $(INCLUDE_DIR)/package.mk
 

diff --git a/package/switch/src/switch-robo.c b/package/switch/src/switch-robo.c
index 2fca360578dc37d4dec51a67c3ea5dadea1ddc09..817fba3f48f28087bfd6ec0c6bf3f5eb1a80d1d3 100644 (file)
--- a/package/switch/src/switch-robo.c
+++ b/package/switch/src/switch-robo.c
@@ -301,7 +301,7 @@ static int robo_probe(char *devname)
 {
        __u32 phyid;
        unsigned int i;
-       int err;
+       int err = 1;
 
        printk(KERN_INFO PFX "Probing device %s: ", devname);
        strcpy(robo.ifr.ifr_name, devname);
@@ -331,7 +331,7 @@ static int robo_probe(char *devname)
                    (mii->phy_id != ROBO_PHY_ADDR_BCM63XX) &&
                    (mii->phy_id != ROBO_PHY_ADDR_TG3)) {
                        printk("Invalid phy address (%d)\n", mii->phy_id);
-                       return 1;
+                       goto done;
                }
                robo.use_et = 0;
                /* The robo has a fixed PHY address that is different from the
@@ -344,7 +344,7 @@ static int robo_probe(char *devname)
 
        if (phyid == 0xffffffff || phyid == 0x55210022) {
                printk("No Robo switch in managed mode found, phy_id = 0x%08x\n", phyid);
-               return 1;
+               goto done;
        }
 
        /* Get the device ID */
@@ -361,11 +361,18 @@ static int robo_probe(char *devname)
        robo_switch_reset();
        err = robo_switch_enable();
        if (err)
-               return err;
+               goto done;
+       err = 0;
 
        printk("found a 5%s%x!%s\n", robo.devid & 0xff00 ? "" : "3", robo.devid,
                robo.is_5350 ? " It's a 5350." : "");
-       return 0;
+
+done:
+       if (err) {
+               dev_put(robo.dev);
+               robo.dev = NULL;
+       }
+       return err;
 }
 
 
@@ -610,6 +617,8 @@ static int __init robo_init(void)
 static void __exit robo_exit(void)
 {
        switch_unregister_driver(DRIVER_NAME);
+       if (robo.dev)
+               dev_put(robo.dev);
        kfree(robo.device);
 }