super-gpt.c: Fix check_return issue in load_gpt()

Fix check_return issue in load_gpt() reported by SAST analysis in
super-gpt.c.

Signed-off-by: Anna Sztukowska <anna.sztukowska@intel.com>

diff --git a/super-gpt.c b/super-gpt.c
index a1e9aa9dc79a00bb01a5e28e9d779bf4fad3ab83..ec3cf53f8620978783dc67a0eb2a230a9423a385 100644 (file)
--- a/super-gpt.c
+++ b/super-gpt.c
@@ -105,7 +105,8 @@ static int load_gpt(struct supertype *st, int fd, char *devname)
                return 1;
        }
        /* Set offset to second block (GPT header) */
-       lseek(fd, sector_size, SEEK_SET);
+       if (lseek(fd, sector_size, SEEK_SET) == -1L)
+               goto no_read;
        /* Seem to have GPT, load the header */
        gpt_head = (struct GPT*)(super+1);
        if (read(fd, gpt_head, sizeof(*gpt_head)) != sizeof(*gpt_head))
@@ -118,7 +119,8 @@ static int load_gpt(struct supertype *st, int fd, char *devname)
        to_read = __le32_to_cpu(gpt_head->part_cnt) * sizeof(struct GPT_part_entry);
        to_read =  ((to_read+511)/512) * 512;
        /* Set offset to third block (GPT entries) */
-       lseek(fd, sector_size*2, SEEK_SET);
+       if (lseek(fd, sector_size * 2, SEEK_SET) == -1L)
+               goto no_read;
        if (read(fd, gpt_head+1, to_read) != to_read)
                goto no_read;