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author | Ben Hutchings <ben@decadent.org.uk> | 2010-05-25 04:20:30 +0100 |
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committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-06-18 15:16:21 -0700 |
commit | 9a3dfa0555130952517b9a9c3918729495aa709a (patch) | |
tree | 24ecedd81f56600014d91b35ae36ef74541972de | |
parent | 37a18632b00f0d1627556c532f719ad5a08b369f (diff) | |
download | linux-3.10-9a3dfa0555130952517b9a9c3918729495aa709a.tar.gz linux-3.10-9a3dfa0555130952517b9a9c3918729495aa709a.tar.bz2 linux-3.10-9a3dfa0555130952517b9a9c3918729495aa709a.zip |
Staging: rtl8192su: Clean up in case of an error in module initialisation
Currently various resources may be leaked in case of an error.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r-- | drivers/staging/rtl8192su/r8192U_core.c | 43 |
1 files changed, 36 insertions, 7 deletions
diff --git a/drivers/staging/rtl8192su/r8192U_core.c b/drivers/staging/rtl8192su/r8192U_core.c index 447d6474a70..1b4ff90f43a 100644 --- a/drivers/staging/rtl8192su/r8192U_core.c +++ b/drivers/staging/rtl8192su/r8192U_core.c @@ -990,10 +990,11 @@ static int proc_get_stats_rx(char *page, char **start, return len; } -void rtl8192_proc_module_init(void) +int rtl8192_proc_module_init(void) { RT_TRACE(COMP_INIT, "Initializing proc filesystem"); rtl8192_proc=create_proc_entry(RTL819xU_MODULE_NAME, S_IFDIR, init_net.proc_net); + return rtl8192_proc ? 0 : -ENOMEM; } @@ -7473,35 +7474,63 @@ static int __init rtl8192_usb_module_init(void) ret = ieee80211_crypto_init(); if (ret) { printk(KERN_ERR "ieee80211_crypto_init() failed %d\n", ret); - return ret; + goto fail_crypto; } ret = ieee80211_crypto_tkip_init(); if (ret) { printk(KERN_ERR "ieee80211_crypto_tkip_init() failed %d\n", ret); - return ret; + goto fail_crypto_tkip; } ret = ieee80211_crypto_ccmp_init(); if (ret) { printk(KERN_ERR "ieee80211_crypto_ccmp_init() failed %d\n", ret); - return ret; + goto fail_crypto_ccmp; } ret = ieee80211_crypto_wep_init(); if (ret) { printk(KERN_ERR "ieee80211_crypto_wep_init() failed %d\n", ret); - return ret; + goto fail_crypto_wep; } printk(KERN_INFO "\nLinux kernel driver for RTL8192 based WLAN cards\n"); printk(KERN_INFO "Copyright (c) 2007-2008, Realsil Wlan\n"); RT_TRACE(COMP_INIT, "Initializing module"); RT_TRACE(COMP_INIT, "Wireless extensions version %d", WIRELESS_EXT); - rtl8192_proc_module_init(); - return usb_register(&rtl8192_usb_driver); + + ret = rtl8192_proc_module_init(); + if (ret) { + pr_err("rtl8192_proc_module_init() failed %d\n", ret); + goto fail_proc; + } + + ret = usb_register(&rtl8192_usb_driver); + if (ret) { + pr_err("usb_register() failed %d\n", ret); + goto fail_usb; + } + + return 0; + +fail_usb: + rtl8192_proc_module_remove(); +fail_proc: + ieee80211_crypto_wep_exit(); +fail_crypto_wep: + ieee80211_crypto_ccmp_exit(); +fail_crypto_ccmp: + ieee80211_crypto_tkip_exit(); +fail_crypto_tkip: + ieee80211_crypto_deinit(); +fail_crypto: +#ifdef CONFIG_IEEE80211_DEBUG + ieee80211_debug_exit(); +#endif + return ret; } |