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tty: hvc_console: silence unintialized variable warning

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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>
This commit is contained in:
Dan Carpenter 2016-04-13 09:44:31 +03:00 committed by Greg Kroah-Hartman
parent 423314337a
commit fab794aeb6
1 changed files with 1 additions and 1 deletions
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2
drivers/tty/hvc/hvc_console.c
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@ -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;