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authorDan Carpenter <dan.carpenter@oracle.com>2016-04-13 09:44:31 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-04-30 09:26:55 -0700
commitfab794aeb60f5069a026fad8a4ff7c1cdf5b8713 (patch)
treea26c118ca3c5c69522f94608498eda47094746dd
parent423314337acde8ddda6324f0917b306642b3ef6c (diff)
downloadlinux-fab794aeb60f5069a026fad8a4ff7c1cdf5b8713.tar.bz2
tty: hvc_console: silence unintialized variable warning
If ->get_char() returns a negative error code and that can mean that "ch" is uninitialized. The callers of this function expect NO_POLL_CHAR on error so let's return that. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/tty/hvc/hvc_console.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c
index 209dad8c96a0..ce864875330e 100644
--- a/drivers/tty/hvc/hvc_console.c
+++ b/drivers/tty/hvc/hvc_console.c
@@ -814,7 +814,7 @@ static int hvc_poll_get_char(struct tty_driver *driver, int line)
n = hp->ops->get_chars(hp->vtermno, &ch, 1);
- if (n == 0)
+ if (n <= 0)
return NO_POLL_CHAR;
return ch;