[libvirt] [PATCH] virBitmapParse: Fix behavior in case of error
Re-arrange the code so that the returned bitmap is always initialized to
NULL even on early failures and return an error message as some callers
are already expecting it.
---
src/util/virbitmap.c | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/src/util/virbitmap.c b/src/util/virbitmap.c
index 47c678e..5d0655c 100644
--- a/src/util/virbitmap.c
+++ b/src/util/virbitmap.c
@@ -298,23 +298,21 @@ virBitmapParse(const char *str,
size_t bitmapSize)
{
bool neg = false;
- const char *cur;
+ const char *cur = str;
char *tmp;
size_t i;
int start, last;
- if (!str)
+ if (!(*bitmap = virBitmapNew(bitmapSize)))
return -1;
- cur = str;
- virSkipSpaces(&cur);
+ if (!str)
+ goto error;
- if (*cur == 0)
- return -1;
+ virSkipSpaces(&cur);
- *bitmap = virBitmapNew(bitmapSize);
- if (!*bitmap)
- return -1;
+ if (*cur == '\0')
+ goto error;
while (*cur != 0 && *cur != terminator) {
/*
@@ -384,6 +382,8 @@ virBitmapParse(const char *str,
return virBitmapCountBits(*bitmap);
error:
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Failed to parse bitmap '%s'", str));
virBitmapFree(*bitmap);
*bitmap = NULL;
return -1;
--
1.8.3.2