From fc97114b8d67819fadcc5af855da9a3e6a6a329b Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rjw@sisk.pl>
Date: Mon, 8 Aug 2011 00:26:50 +0200
Subject: [PATCH] sh: Fix boot crash related to SCI
Commit d006199e72a9 ("serial: sh-sci: Regtype probing doesn't need to be
fatal.") made sci_init_single() return when sci_probe_regmap() succeeds,
although it should return when sci_probe_regmap() fails. This causes
systems using the serial sh-sci driver to crash during boot.
Fix the problem by using the right return condition.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
drivers/tty/serial/sh-sci.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index d0a56235c50e..2ec57b2fb278 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -1889,7 +1889,7 @@ static int __devinit sci_init_single(struct platform_device *dev,
if (p->regtype == SCIx_PROBE_REGTYPE) {
ret = sci_probe_regmap(p);
- if (unlikely(!ret))
+ if (unlikely(ret))
return ret;
}
--
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