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>
diff --git a/drivers/net/wireless/prism54/isl_ioctl.c b/drivers/net/wireless/prism54/isl_ioctl.c
index b9d0073..1b595a6 100644
--- a/drivers/net/wireless/prism54/isl_ioctl.c
+++ b/drivers/net/wireless/prism54/isl_ioctl.c
@@ -165,8 +165,7 @@
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 @@
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 @@
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 @@
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);