[PATCH] rtc-max6902: month conversion fix

Fix October-only BCD-to-binary conversion bug:

0x08 -> 7
0x09 -> 8
0x10 -> 15 (!)
0x11 -> 19

Fixes http://bugzilla.kernel.org/show_bug.cgi?id=7361

Cc: Raphael Assenat <[e-mail]>
Cc: Alessandro Zummo <[e-mail]>
Cc: <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/rtc/rtc-max6902.c

···
 	dt->tm_min	= BCD2BIN(chip->buf[2]);
 	dt->tm_hour	= BCD2BIN(chip->buf[3]);
 	dt->tm_mday	= BCD2BIN(chip->buf[4]);
-	dt->tm_mon	= BCD2BIN(chip->buf[5] - 1);
+	dt->tm_mon	= BCD2BIN(chip->buf[5]) - 1;
 	dt->tm_wday	= BCD2BIN(chip->buf[6]);
 	dt->tm_year = BCD2BIN(chip->buf[7]);