From 2c8e4a347bb68229937ceda6e099fb10e9b792d1 Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Fri, 1 Nov 2019 12:02:13 +0100 Subject: [PATCH] util: Fix error path Unlock and close the stream in case some file operations in uci_open_stream() fail. Signed-off-by: Hauke Mehrtens --- util.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/util.c b/util.c index 12aec9b..8572e81 100644 --- a/util.c +++ b/util.c @@ -221,17 +221,21 @@ __private FILE *uci_open_stream(struct uci_context *ctx, const char *filename, c ret = flock(fd, (write ? LOCK_EX : LOCK_SH)); if ((ret < 0) && (errno != ENOSYS)) - goto error; + goto error_close; ret = lseek(fd, 0, pos); if (ret < 0) - goto error; + goto error_unlock; file = fdopen(fd, (write ? "w+" : "r")); if (file) goto done; +error_unlock: + flock(fd, LOCK_UN); +error_close: + close(fd); error: UCI_THROW(ctx, UCI_ERR_IO); done: -- 2.30.2