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| author | Richard W.M. Jones <rjones@redhat.com> | 2011-11-24 14:06:31 +0000 |
|---|---|---|
| committer | Richard W.M. Jones <rjones@redhat.com> | 2011-11-24 21:06:55 +0000 |
| commit | ed628d30b05b4f5884f1d2029633cf155bf5e571 (patch) | |
| tree | 8c70d58f5ee6e2be764d1281f7455005c94403da /align/scan.c | |
| parent | fd0dfead3088da242e1654095cbb6f37383be843 (diff) | |
| download | libguestfs-ed628d30b05b4f5884f1d2029633cf155bf5e571.tar.gz libguestfs-ed628d30b05b4f5884f1d2029633cf155bf5e571.tar.xz libguestfs-ed628d30b05b4f5884f1d2029633cf155bf5e571.zip | |
virt-alignment-scan: Add checks for when API calls return NULL.
In particular, virt-alignment-scan -a /dev/null would segfault
because of an error returned by parted.
(cherry picked from commit 7b192f5a672197ad67ac23501e420c674aa2f3a9)
Diffstat (limited to 'align/scan.c')
| -rw-r--r-- | align/scan.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/align/scan.c b/align/scan.c index 529add53..7b4631ab 100644 --- a/align/scan.c +++ b/align/scan.c @@ -228,9 +228,13 @@ scan (void) struct guestfs_partition_list *parts; devices = guestfs_list_devices (g); + if (devices == NULL) + exit (EXIT_FAILURE); for (i = 0; devices[i] != NULL; ++i) { parts = guestfs_part_list (g, devices[i]); + if (parts == NULL) + exit (EXIT_FAILURE); /* Canonicalize the name of the device for printing. */ if (STRPREFIX (devices[i], "/dev/") && |