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authorDaniel Walker <dwalker@mvista.com>2007-12-21 20:16:15 -0800
committerDavid S. Miller <davem@davemloft.net>2008-01-28 15:09:12 -0800
commit27ae4d4328769021b95777e37873074c1da52f91 (patch)
tree288973678d482a731eee32c15abfee9a3b4562e0 /drivers/net/wireless/prism54
parent772353d84991ecd2eebc2e287c381cb1626f9209 (diff)
prism54: remove questionable down_interruptible usage
Reviewing the semaphore usage I noticed these down_interruptible calls. Most of these aren't returning anything, so a caller can't tell if the operation completed or not. prism54_wpa_bss_ie_get() returns zero, but it's treated as the function failing which doesn't seem correct. Signed-off-by: Daniel Walker <dwalker@mvista.com> Cc: Michael Wu <flamingice@sourmilk.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/prism54')
-rw-r--r--drivers/net/wireless/prism54/isl_ioctl.c12
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/net/wireless/prism54/isl_ioctl.c b/drivers/net/wireless/prism54/isl_ioctl.c
index b9d00730a68..1b595a6525f 100644
--- a/drivers/net/wireless/prism54/isl_ioctl.c
+++ b/drivers/net/wireless/prism54/isl_ioctl.c
@@ -165,8 +165,7 @@ prism54_update_stats(struct work_struct *work)
struct obj_bss bss, *bss2;
union oid_res_t r;
- if (down_interruptible(&priv->stats_sem))
- return;
+ down(&priv->stats_sem);
/* Noise floor.
* I'm not sure if the unit is dBm.
@@ -1793,8 +1792,7 @@ prism54_clear_mac(struct islpci_acl *acl)
struct list_head *ptr, *next;
struct mac_entry *entry;
- if (down_interruptible(&acl->sem))
- return;
+ down(&acl->sem);
if (acl->size == 0) {
up(&acl->sem);
@@ -2116,8 +2114,7 @@ prism54_wpa_bss_ie_add(islpci_private *priv, u8 *bssid,
if (wpa_ie_len > MAX_WPA_IE_LEN)
wpa_ie_len = MAX_WPA_IE_LEN;
- if (down_interruptible(&priv->wpa_sem))
- return;
+ down(&priv->wpa_sem);
/* try to use existing entry */
list_for_each(ptr, &priv->bss_wpa_list) {
@@ -2178,8 +2175,7 @@ prism54_wpa_bss_ie_get(islpci_private *priv, u8 *bssid, u8 *wpa_ie)
struct islpci_bss_wpa_ie *bss = NULL;
size_t len = 0;
- if (down_interruptible(&priv->wpa_sem))
- return 0;
+ down(&priv->wpa_sem);
list_for_each(ptr, &priv->bss_wpa_list) {
bss = list_entry(ptr, struct islpci_bss_wpa_ie, list);