[libvirt] [PATCH] trying to close some potential FILE * leaks
Daniel P. Berrange
berrange at redhat.com
Mon Mar 16 09:26:45 UTC 2009
On Fri, Mar 13, 2009 at 06:20:21PM +0100, Daniel Veillard wrote:
> While reviewing the code due to what seems to be a FILE * leak I
> found the following problems, probably not what got me in troubles but
> should still be fixed,
ACK, all looks good.
Daniel
> Index: qemud/qemud.c
> ===================================================================
> RCS file: /data/cvs/libxen/qemud/qemud.c,v
> retrieving revision 1.146
> diff -u -p -u -r1.146 qemud.c
> --- qemud/qemud.c 3 Mar 2009 08:25:50 -0000 1.146
> +++ qemud/qemud.c 13 Mar 2009 17:15:20 -0000
> @@ -488,7 +488,7 @@ static int qemudWritePidFile(const char
> if (fprintf(fh, "%lu\n", (unsigned long)getpid()) < 0) {
> VIR_ERROR(_("Failed to write to pid file '%s' : %s"),
> pidFile, virStrerror(errno, ebuf, sizeof ebuf));
> - close(fd);
> + fclose(fh);
> return -1;
> }
>
> Index: src/cgroup.c
> ===================================================================
> RCS file: /data/cvs/libxen/src/cgroup.c,v
> retrieving revision 1.9
> diff -u -p -u -r1.9 cgroup.c
> --- src/cgroup.c 6 Mar 2009 14:44:05 -0000 1.9
> +++ src/cgroup.c 13 Mar 2009 17:15:21 -0000
> @@ -57,7 +57,7 @@ void virCgroupFree(virCgroupPtr *group)
>
> static virCgroupPtr virCgroupGetMount(const char *controller)
> {
> - FILE *mounts;
> + FILE *mounts = NULL;
> struct mntent entry;
> char buf[CGROUP_MAX_VAL];
> virCgroupPtr root = NULL;
> @@ -90,6 +90,8 @@ static virCgroupPtr virCgroupGetMount(co
>
> return root;
> err:
> + if (mounts != NULL)
> + fclose(mounts);
> virCgroupFree(&root);
>
> return NULL;
> Index: src/uml_driver.c
> ===================================================================
> RCS file: /data/cvs/libxen/src/uml_driver.c,v
> retrieving revision 1.25
> diff -u -p -u -r1.25 uml_driver.c
> --- src/uml_driver.c 3 Mar 2009 09:14:28 -0000 1.25
> +++ src/uml_driver.c 13 Mar 2009 17:15:21 -0000
> @@ -546,6 +546,7 @@ reopen:
>
> if (fscanf(file, "%d", &vm->pid) != 1) {
> errno = EINVAL;
> + fclose(file);
> goto cleanup;
> }
>
> @@ -1039,6 +1040,7 @@ static int umlGetProcessInfo(unsigned lo
>
> if (fscanf(pidinfo, "%*d %*s %*c %*d %*d %*d %*d %*d %*u %*u %*u %*u %*u %llu %llu", &usertime, &systime) != 2) {
> umlDebug("not enough arg");
> + fclose(pidinfo);
> return -1;
> }
>
> Index: src/util.c
> ===================================================================
> RCS file: /data/cvs/libxen/src/util.c,v
> retrieving revision 1.93
> diff -u -p -u -r1.93 util.c
> --- src/util.c 3 Mar 2009 12:03:44 -0000 1.93
> +++ src/util.c 13 Mar 2009 17:15:21 -0000
> @@ -1058,6 +1058,7 @@ int virFileReadPid(const char *dir,
>
> if (fscanf(file, "%d", pid) != 1) {
> rc = EINVAL;
> + fclose(file);
> goto cleanup;
> }
>
> --
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