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lxcSetupFuse: Cleanup error paths

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In the lxcSetupFuse() function there are multiple cleanup labels,
but with a bit of rewrite they can be joined into one 'error'
label. And while at it, set the @f argument only in the
successful path (currently is set in error case too).

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Michal Privoznik 2022-02-22 13:47:36 +01:00
parent 320efa9572
commit c7171f937e
1 changed files with 11 additions and 11 deletions
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22
src/lxc/lxc_fuse.c
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@ -314,19 +314,19 @@ lxcSetupFuse(struct virLXCFuse **f,
{
int ret = -1;
struct fuse_args args = FUSE_ARGS_INIT(0, NULL);
struct virLXCFuse *fuse = g_new0(virLXCFuse, 1);
g_autofree struct virLXCFuse *fuse = g_new0(virLXCFuse, 1);
fuse->def = def;
if (virMutexInit(&fuse->lock) < 0)
goto cleanup2;
return -1;
fuse->mountpoint = g_strdup_printf("%s/%s.fuse/", LXC_STATE_DIR, def->name);
if (g_mkdir_with_parents(fuse->mountpoint, 0777) < 0) {
virReportSystemError(errno, _("Cannot create %s"),
fuse->mountpoint);
goto cleanup1;
goto error;
}
/* process name is libvirt_lxc */
@ -334,29 +334,29 @@ lxcSetupFuse(struct virLXCFuse **f,
fuse_opt_add_arg(&args, "-odirect_io") == -1 ||
fuse_opt_add_arg(&args, "-oallow_other") == -1 ||
fuse_opt_add_arg(&args, "-ofsname=libvirt") == -1)
goto cleanup1;
goto error;
fuse->ch = fuse_mount(fuse->mountpoint, &args);
if (fuse->ch == NULL)
goto cleanup1;
goto error;
fuse->fuse = fuse_new(fuse->ch, &args, &lxcProcOper,
sizeof(lxcProcOper), fuse->def);
if (fuse->fuse == NULL) {
fuse_unmount(fuse->mountpoint, fuse->ch);
goto cleanup1;
goto error;
}
*f = g_steal_pointer(&fuse);
ret = 0;
cleanup:
fuse_opt_free_args(&args);
*f = fuse;
return ret;
cleanup1:
error:
if (fuse->ch)
fuse_unmount(fuse->mountpoint, fuse->ch);
g_free(fuse->mountpoint);
virMutexDestroy(&fuse->lock);
cleanup2:
g_free(fuse);
goto cleanup;
}