Here is a fix for chipset_enable.c when there is not /dev/cpu

Open fails so there is no reason to lseek in. Actually this is a trivial
fix for a bad return value from open.

Corresponding to flashrom svn r462.

Signed-off-by: Bertrand Jacquin <beber@meleeweb.net>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>

chipset_enable.c

@@ -511,7 +511,7 @@ static int enable_flash_cs5536(struct pci_dev *dev, const char *name)
 	unsigned char buf[8];
 
 	fd_msr = open("/dev/cpu/0/msr", O_RDWR);
-	if (!fd_msr) {
+	if (fd_msr == -1) {
 		perror("open msr");
 		return -1;
 	}