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-rw-r--r--sys/geom/geom_gpt.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/geom/geom_gpt.c b/sys/geom/geom_gpt.c
index 72120f4..77317b1 100644
--- a/sys/geom/geom_gpt.c
+++ b/sys/geom/geom_gpt.c
@@ -188,6 +188,8 @@ g_gpt_taste(struct g_class *mp, struct g_provider *pp, int insist __unused)
tblsz = (entries * entsz + secsz - 1) & ~(secsz - 1);
buf = g_read_data(cp, le64toh(hdr->hdr_lba_table) * secsz,
tblsz, &error);
+ if (buf == NULL)
+ break;
for (i = 0; i < entries; i++) {
struct uuid unused = GPT_ENT_TYPE_UNUSED;
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