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[dpdk-dev,5/5] cfgfile: prevent error when reading an empty file

Message ID 1418742233-16776-6-git-send-email-bruce.richardson@intel.com (mailing list archive)
State Accepted, archived
Headers show

Commit Message

Bruce Richardson Dec. 16, 2014, 3:03 p.m. UTC
If the file to be read by the cfgfile is empty, i.e. no configuration
data, but possibly comments present, the cfgfile should not mark the
last processed section (curr_section) as having N entries, since there
is no last processed section.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
---
 lib/librte_cfgfile/rte_cfgfile.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
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Patch

diff --git a/lib/librte_cfgfile/rte_cfgfile.c b/lib/librte_cfgfile/rte_cfgfile.c
index f2bc2cc..b81c273 100644
--- a/lib/librte_cfgfile/rte_cfgfile.c
+++ b/lib/librte_cfgfile/rte_cfgfile.c
@@ -225,8 +225,10 @@  rte_cfgfile_load(const char *filename, int flags)
 	}
 	fclose(f);
 	cfg->flags = flags;
-	cfg->sections[curr_section]->num_entries = curr_entry + 1;
 	cfg->num_sections = curr_section + 1;
+	/* curr_section will still be -1 if we have an empty file */
+	if (curr_section >= 0)
+		cfg->sections[curr_section]->num_entries = curr_entry + 1;
 	return cfg;
 
 error1: