watchdog: ziirave_wdt: Don't check if ihex record length is zero

Ihex_next_binrec() will return NULL if next record's 'len' is zero, so
explicit checks for that in the driver are unnecessary. Drop them.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Rick Ramstetter <rick@anteaterllc.com>
Cc: linux-watchdog@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20190812200906.31344-13-andrew.smirnov@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>

drivers/watchdog/ziirave_wdt.c

@@ -318,10 +318,6 @@ static int ziirave_firm_verify(struct watchdog_device *wdd,
 	u16 addr;
 
 	for (rec = (void *)fw->data; rec; rec = ihex_next_binrec(rec)) {
-		/* Zero length marks end of records */
-		if (!be16_to_cpu(rec->len))
-			break;
-
 		addr = (be32_to_cpu(rec->addr) & 0xffff) >> 1;
 		if (addr < ZIIRAVE_FIRM_FLASH_MEMORY_START ||
 		    addr > ZIIRAVE_FIRM_FLASH_MEMORY_END)
@@ -381,10 +377,6 @@ static int ziirave_firm_upload(struct watchdog_device *wdd,
 	msleep(500);
 
 	for (rec = (void *)fw->data; rec; rec = ihex_next_binrec(rec)) {
-		/* Zero length marks end of records */
-		if (!be16_to_cpu(rec->len))
-			break;
-
 		ret = ziirave_firm_write_pkt(wdd, be32_to_cpu(rec->addr),
 					     rec->data, be16_to_cpu(rec->len));
 		if (ret)