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| author | Florian Fainelli <florian@openwrt.org> | 2011-02-20 17:24:15 +0000 |
|---|---|---|
| committer | Florian Fainelli <florian@openwrt.org> | 2011-02-20 17:24:15 +0000 |
| commit | 640927dde360260688f30083433b0d88a151dbed (patch) | |
| tree | 2de8dd410b20e30d495acd5babcb2bb5aa15b0d4 /package/switch/src | |
| parent | 650566c9806bf5b22d6667c142d9a87b4881438c (diff) | |
| download | mtk-20170518-640927dde360260688f30083433b0d88a151dbed.zip mtk-20170518-640927dde360260688f30083433b0d88a151dbed.tar.gz mtk-20170518-640927dde360260688f30083433b0d88a151dbed.tar.bz2 | |
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
Diffstat (limited to 'package/switch/src')
| -rw-r--r-- | package/switch/src/switch-robo.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/package/switch/src/switch-robo.c b/package/switch/src/switch-robo.c index 2fca360..817fba3 100644 --- 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); } |