[PATCH 2/9] config: report correct line number upon error

[Johannes Schindelin <johannes.schindelin@gmx.de>]

When get_value() parses a key/value pair, it is possible that the line
number is decreased (because the \n has been consumed already) before the
key/value pair is passed to the callback function, to allow for the
correct line to be attributed in case of an error.

However, when git_parse_source() asks get_value() to parse the key/value
pair, the error reporting is performed *after* get_value() returns.

Which means that we have to be careful not to increase the line number
in get_value() after the callback function returned an error.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 config.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/config.c b/config.c
index 146cb3452ad..9b88531a70d 100644
--- a/config.c
+++ b/config.c
@@ -604,7 +604,8 @@ static int get_value(config_fn_t fn, void *data, struct strbuf *name)
 	 */
 	cf->linenr--;
 	ret = fn(name->buf, value, data);
-	cf->linenr++;
+	if (!ret)
+		cf->linenr++;
 	return ret;
 }
 
-- 
2.13.0.windows.1.460.g13f583bedb5