[libvirt] [PATCH v2 04/41] util: buffer: use VIR_AUTOFREE instead of VIR_FREE for scalar types

By making use of GNU C's cleanup attribute handled by the VIR_AUTOFREE macro for declaring scalar variables, majority of the VIR_FREE calls can be dropped, which in turn leads to getting rid of most of our cleanup sections. Signed-off-by: Sukrit Bhatnagar <skrtbhtngr(a)gmail.com&gt; Reviewed-by: Erik Skultety <eskultet(a)redhat.com&gt; --- src/util/virbuffer.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/src/util/virbuffer.c b/src/util/virbuffer.c index 0640cfa..f70069e 100644 --- a/src/util/virbuffer.c +++ b/src/util/virbuffer.c @@ -456,7 +456,8 @@ void virBufferEscapeString(virBufferPtr buf, const char *format, const char *str) { int len; - char *escaped, *out; + VIR_AUTOFREE(char *) escaped = NULL; + char *out; const char *cur; const char forbidden_characters[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, @@ -533,7 +534,6 @@ virBufferEscapeString(virBufferPtr buf, const char *format, const char *str) *out = 0; virBufferAsprintf(buf, format, escaped); - VIR_FREE(escaped); } /** @@ -612,7 +612,8 @@ virBufferEscape(virBufferPtr buf, char escape, const char *toescape, const char *format, const char *str) { int len; - char *escaped, *out; + VIR_AUTOFREE(char *) escaped = NULL; + char *out; const char *cur; if ((format == NULL) || (buf == NULL) || (str == NULL)) @@ -644,7 +645,6 @@ virBufferEscape(virBufferPtr buf, char escape, const char *toescape, *out = 0; virBufferAsprintf(buf, format, escaped); - VIR_FREE(escaped); } @@ -689,7 +689,7 @@ virBufferEscapeN(virBufferPtr buf, { int len; size_t i; - char *escaped = NULL; + VIR_AUTOFREE(char *) escaped = NULL; char *out; const char *cur; virBufferEscapePair escapeItem; @@ -752,7 +752,6 @@ virBufferEscapeN(virBufferPtr buf, cleanup: va_end(ap); VIR_FREE(escapeList); - VIR_FREE(escaped); } @@ -817,7 +816,8 @@ void virBufferEscapeShell(virBufferPtr buf, const char *str) { int len; - char *escaped, *out; + VIR_AUTOFREE(char *) escaped = NULL; + char *out; const char *cur; if ((buf == NULL) || (str == NULL)) @@ -861,7 +861,6 @@ virBufferEscapeShell(virBufferPtr buf, const char *str) *out = 0; virBufferAdd(buf, escaped, -1); - VIR_FREE(escaped); } /** -- 1.8.3.1