[libvirt] [PATCH 1/3] getNewStyleBlockDevice: Adjust formatting

Instead of initializing return value to zero (success) and overwriting it on every failure just before the control jumps onto 'out' label, let's initialize to an error value and set to zero only when we are sure about the success. Just follow the pattern we have in the rest of the code. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com&gt; --- src/storage/storage_backend_scsi.c | 27 ++++++++++++--------------- 1 file changed, 12 insertions(+), 15 deletions(-) diff --git a/src/storage/storage_backend_scsi.c b/src/storage/storage_backend_scsi.c index e6c8bb5..3c1bae6 100644 --- a/src/storage/storage_backend_scsi.c +++ b/src/storage/storage_backend_scsi.c @@ -255,44 +255,41 @@ getNewStyleBlockDevice(const char *lun_path, char *block_path = NULL; DIR *block_dir = NULL; struct dirent *block_dirent = NULL; - int retval = 0; + int retval = -1; int direrr; if (virAsprintf(&block_path, "%s/block", lun_path) < 0) - goto out; + goto cleanup; VIR_DEBUG("Looking for block device in '%s'", block_path); - block_dir = opendir(block_path); - if (block_dir == NULL) { + if (!(block_dir = opendir(block_path))) { virReportSystemError(errno, _("Failed to opendir sysfs path '%s'"), block_path); - retval = -1; - goto out; + goto cleanup; } while ((direrr = virDirRead(block_dir, &block_dirent, block_path)) > 0) { - if (STREQLEN(block_dirent->d_name, ".", 1)) continue; - if (VIR_STRDUP(*block_device, block_dirent->d_name) < 0) { - closedir(block_dir); - retval = -1; - goto out; - } + if (VIR_STRDUP(*block_device, block_dirent->d_name) < 0) + goto cleanup; VIR_DEBUG("Block device is '%s'", *block_device); break; } + if (direrr < 0) - retval = -1; + goto cleanup; - closedir(block_dir); + retval = 0; - out: + cleanup: + if (block_dir) + closedir(block_dir); VIR_FREE(block_path); return retval; } -- 2.3.6