2.6.37-rc7: Regression: b43: crashes in hwrng_register()

Commit Message

Larry Finger Dec. 30, 2010, 6:37 p.m. UTC

None

Patch

Index: wireless-testing/drivers/char/hw_random/core.c
===================================================================
--- wireless-testing.orig/drivers/char/hw_random/core.c
+++ wireless-testing/drivers/char/hw_random/core.c
@@ -49,11 +49,11 @@ 
 
 
 static struct hwrng *current_rng;
-static LIST_HEAD(rng_list);
 static DEFINE_MUTEX(rng_mutex);
 static int data_avail;
 static u8 rng_buffer[SMP_CACHE_BYTES < 32 ? 32 : SMP_CACHE_BYTES]
 	__cacheline_aligned;
+static LIST_HEAD(rng_list);
 
 static inline int hwrng_init(struct hwrng *rng)
 {
@@ -305,6 +305,9 @@  int hwrng_register(struct hwrng *rng)
 	    (rng->data_read == NULL && rng->read == NULL))
 		goto out;
 
+	printk(KERN_INFO "Calling hwrng_register\n");
+	dump_stack();
+
 	mutex_lock(&rng_mutex);
 
 	/* Must not register two RNGs with the same name. */