1 files changed, 14 insertions, 10 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index c7108050af3..621dac18ca6 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -1684,24 +1684,28 @@ static void rt2800_efuse_read(struct rt2x00_dev *rt2x00dev, unsigned int i)
 {
         u32 reg;
 
-        rt2800_register_read(rt2x00dev, EFUSE_CTRL, &reg);
+        mutex_lock(&rt2x00dev->csr_mutex);
+
+        rt2800_register_read_lock(rt2x00dev, EFUSE_CTRL, &reg);
         rt2x00_set_field32(&reg, EFUSE_CTRL_ADDRESS_IN, i);
         rt2x00_set_field32(&reg, EFUSE_CTRL_MODE, 0);
         rt2x00_set_field32(&reg, EFUSE_CTRL_KICK, 1);
-        rt2800_register_write(rt2x00dev, EFUSE_CTRL, reg);
+        rt2800_register_write_lock(rt2x00dev, EFUSE_CTRL, reg);
 
         /* Wait until the EEPROM has been loaded */
         rt2800_regbusy_read(rt2x00dev, EFUSE_CTRL, EFUSE_CTRL_KICK, &reg);
 
         /* Apparently the data is read from end to start */
-        rt2800_register_read(rt2x00dev, EFUSE_DATA3,
-                                (u32 *)&rt2x00dev->eeprom[i]);
-        rt2800_register_read(rt2x00dev, EFUSE_DATA2,
-                                (u32 *)&rt2x00dev->eeprom[i + 2]);
-        rt2800_register_read(rt2x00dev, EFUSE_DATA1,
-                                (u32 *)&rt2x00dev->eeprom[i + 4]);
-        rt2800_register_read(rt2x00dev, EFUSE_DATA0,
-                                (u32 *)&rt2x00dev->eeprom[i + 6]);
+        rt2800_register_read_lock(rt2x00dev, EFUSE_DATA3,
+                                        (u32 *)&rt2x00dev->eeprom[i]);
+        rt2800_register_read_lock(rt2x00dev, EFUSE_DATA2,
+                                        (u32 *)&rt2x00dev->eeprom[i + 2]);
+        rt2800_register_read_lock(rt2x00dev, EFUSE_DATA1,
+                                        (u32 *)&rt2x00dev->eeprom[i + 4]);
+        rt2800_register_read_lock(rt2x00dev, EFUSE_DATA0,
+                                        (u32 *)&rt2x00dev->eeprom[i + 6]);
+
+        mutex_unlock(&rt2x00dev->csr_mutex);
 }
 
 void rt2800_read_eeprom_efuse(struct rt2x00_dev *rt2x00dev)