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util: filecache: use VIR_AUTOFREE instead of VIR_FREE for scalar types

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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@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
This commit is contained in:
Sukrit Bhatnagar 2018-07-13 23:25:08 +05:30 committed by Erik Skultety
parent d2576d3bbe
commit c10ffc37a7
1 changed files with 11 additions and 24 deletions
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35
src/util/virfilecache.c
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@ -100,18 +100,17 @@ static char *
virFileCacheGetFileName(virFileCachePtr cache,
const char *name)
{
char *file = NULL;
char *namehash = NULL;
VIR_AUTOFREE(char *) namehash = NULL;
virBuffer buf = VIR_BUFFER_INITIALIZER;
if (virCryptoHashString(VIR_CRYPTO_HASH_SHA256, name, &namehash) < 0)
goto cleanup;
return NULL;
if (virFileMakePath(cache->dir) < 0) {
virReportSystemError(errno,
_("Unable to create directory '%s'"),
cache->dir);
goto cleanup;
return NULL;
}
virBufferAsprintf(&buf, "%s/%s", cache->dir, namehash);
@ -120,13 +119,9 @@ virFileCacheGetFileName(virFileCachePtr cache,
virBufferAsprintf(&buf, ".%s", cache->suffix);
if (virBufferCheckError(&buf) < 0)
goto cleanup;
return NULL;
file = virBufferContentAndReset(&buf);
cleanup:
VIR_FREE(namehash);
return file;
return virBufferContentAndReset(&buf);
}
@ -135,7 +130,7 @@ virFileCacheLoad(virFileCachePtr cache,
const char *name,
void **data)
{
char *file = NULL;
VIR_AUTOFREE(char *) file = NULL;
int ret = -1;
void *loadData = NULL;
@ -178,7 +173,6 @@ virFileCacheLoad(virFileCachePtr cache,
cleanup:
virObjectUnref(loadData);
VIR_FREE(file);
return ret;
}
@ -188,20 +182,15 @@ virFileCacheSave(virFileCachePtr cache,
const char *name,
void *data)
{
char *file = NULL;
int ret = -1;
VIR_AUTOFREE(char *) file = NULL;
if (!(file = virFileCacheGetFileName(cache, name)))
return ret;
return -1;
if (cache->handlers.saveFile(data, file, cache->priv) < 0)
goto cleanup;
return -1;
ret = 0;
cleanup:
VIR_FREE(file);
return ret;
return 0;
}
@ -346,7 +335,7 @@ virFileCacheLookupByFunc(virFileCachePtr cache,
const void *iterData)
{
void *data = NULL;
char *name = NULL;
VIR_AUTOFREE(char *) name = NULL;
virObjectLock(cache);
@ -356,8 +345,6 @@ virFileCacheLookupByFunc(virFileCachePtr cache,
virObjectRef(data);
virObjectUnlock(cache);
VIR_FREE(name);
return data;
}