wlcore: Propagate errors from wl1271_read_hwaddr

Propagate errors from wl1271_read_hwaddr. This function is only used
when reading the FW log (following a recovery), so don't read the FW log
in case of a bus error.

Also rename prefixes of wlcore functions which their prototypes had to
be changed.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

drivers/net/wireless/ti/wlcore/io.h

@@ -131,7 +131,7 @@ static inline int wlcore_read_data(struct wl1271 *wl, int reg, void *buf,
 	return wlcore_read(wl, wl->rtable[reg], buf, len, fixed);
 }
 
-static inline void wl1271_read_hwaddr(struct wl1271 *wl, int hwaddr,
+static inline int wlcore_read_hwaddr(struct wl1271 *wl, int hwaddr,
 				      void *buf, size_t len, bool fixed)
 {
 	int physical;
@@ -142,7 +142,7 @@ static inline void wl1271_read_hwaddr(struct wl1271 *wl, int hwaddr,
 
 	physical = wlcore_translate_addr(wl, addr);
 
-	wlcore_raw_read(wl, physical, buf, len, fixed);
+	return wlcore_raw_read(wl, physical, buf, len, fixed);
 }
 
 static inline int wlcore_read32(struct wl1271 *wl, int addr, u32 *val)

drivers/net/wireless/ti/wlcore/main.c

@@ -851,8 +851,10 @@ static void wl12xx_read_fwlog_panic(struct wl1271 *wl)
 	/* Traverse the memory blocks linked list */
 	do {
 		memset(block, 0, WL12XX_HW_BLOCK_SIZE);
-		wl1271_read_hwaddr(wl, addr, block, WL12XX_HW_BLOCK_SIZE,
-				   false);
+		ret = wlcore_read_hwaddr(wl, addr, block, WL12XX_HW_BLOCK_SIZE,
+					 false);
+		if (ret < 0)
+			goto out;
 
 		/*
 		 * Memory blocks are linked to one another. The first 4 bytes