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authornbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2011-02-27 20:50:45 +0000
committernbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2011-02-27 20:50:45 +0000
commit51a59f0c5105df74b1c536bbab4fe024b270d471 (patch)
tree1637c220369d2769657ef75881ed5a51f593a77f
parenta3399057b0b79da68f91f43e51d3a97acda4b9fb (diff)
p54: fix a null pointer dereference bug
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@25775 3c298f89-4303-0410-b956-a3cf2f4a3e73
-rw-r--r--package/mac80211/patches/710-p54_rssi_crash_fix.patch18
1 files changed, 18 insertions, 0 deletions
diff --git a/package/mac80211/patches/710-p54_rssi_crash_fix.patch b/package/mac80211/patches/710-p54_rssi_crash_fix.patch
new file mode 100644
index 000000000..73089cda5
--- /dev/null
+++ b/package/mac80211/patches/710-p54_rssi_crash_fix.patch
@@ -0,0 +1,18 @@
+--- a/drivers/net/wireless/p54/eeprom.c
++++ b/drivers/net/wireless/p54/eeprom.c
+@@ -524,10 +524,13 @@ err_data:
+
+ struct p54_rssi_db_entry *p54_rssi_find(struct p54_common *priv, const u16 freq)
+ {
+- struct p54_rssi_db_entry *entry = (void *)(priv->rssi_db->data +
+- priv->rssi_db->offset);
++ struct p54_rssi_db_entry *entry;
+ int i, found = -1;
+
++ if (!priv->rssi_db)
++ return &p54_rssi_default;
++
++ entry = (void *)(priv->rssi_db->data + priv->rssi_db->offset);
+ for (i = 0; i < priv->rssi_db->entries; i++) {
+ if (!same_band(freq, entry[i].freq))
+ continue;