Here's a very quick patch to fix the missing unlock code

Fixes missing unlock for certain chips:
 * unlock_49lf00x
    * Pm49fl002
    * Pm49fl004

 * unlock_49flxxxc
    * SST49LF160C

 * unlock_winbond_fwhub
    * W39V080FA
    * W39V080FA (dual mode)

Fixes missing printlock for certain chip:
 * printlock_w39v040c
    * W39V040C

Corresponding to flashrom svn r907.

Signed-off-by: Sean Nelson <audiohacked@gmail.com>
Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>
diff --git a/sst49lfxxxc.c b/sst49lfxxxc.c
index 80e5520..a65450e 100644
--- a/sst49lfxxxc.c
+++ b/sst49lfxxxc.c
@@ -82,6 +82,11 @@
 	return 0;
 }
 
+int unlock_49lfxxxc(struct flashchip *flash)
+{
+	return write_lockbits_49lfxxxc(flash, 0);
+}
+
 int erase_sector_49lfxxxc(struct flashchip *flash, unsigned int address, unsigned int sector_size)
 {
 	unsigned char status;