drivers/char/cyclades.c: In function 'cyy_interrupt':

drivers/char/cyclades.c:581: warning: 'info' may be used uninitialized in this function

a bug introduced by

: commit 3aeea5b9
: Author:     Jiri Slaby <jirislaby@gmail.com>
: AuthorDate: Sat Sep 19 13:13:16 2009 -0700
: Commit:     Live-CD User <linux@linux.site>
: CommitDate: Sat Sep 19 13:13:16 2009 -0700
:
:    cyclades: introduce cyy_readb/writeb

The fix is not really optimal but I think it'll work.

Cc: Jiri Slaby <jirislaby@gmail.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

drivers/char/cyclades.c

@@ -597,6 +597,7 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, unsigned int chip,
 	channel = save_xir & CyIRChannel;
 	save_car = readb(base_addr + (CyCAR << index));
 	cy_writeb(base_addr + (CyCAR << index), save_xir);
+	info = &cinfo->ports[channel + chip * 4];
 
 	/* validate the port# (as configured and open) */
 	if (channel + chip * 4 >= cinfo->nports) {
@@ -604,7 +605,6 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, unsigned int chip,
 			  readb(base_addr + (CySRER << index)) & ~CyTxRdy);
 		goto end;
 	}
-	info = &cinfo->ports[channel + chip * 4];
 	tty = tty_port_tty_get(&info->port);
 	if (tty == NULL) {
 		cyy_writeb(info, CySRER, cyy_readb(info, CySRER) & ~CyTxRdy);