On 17.08.21 07:03, Heinrich Schuchardt wrote:
Always check the return value of fopen().
This resolves Coverity CID 338491:
Null pointer dereferences (NULL_RETURNS)
Signed-off-by: Heinrich Schuchardt <xypron.g...@gmx.de>
Applied to u-boot-marvell/master
Thanks,
Stefan
---
tools/kwbimage.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/tools/kwbimage.c b/tools/kwbimage.c
index 00cb338d64..2a10df773b 100644
--- a/tools/kwbimage.c
+++ b/tools/kwbimage.c
@@ -832,6 +832,12 @@ static int kwb_dump_fuse_cmds(struct secure_hdr_v1
*sec_hdr)
if (!strcmp(e->name, "a38x")) {
FILE *out = fopen("kwb_fuses_a38x.txt", "w+");
+ if (!out) {
+ fprintf(stderr, "Couldn't open eFuse settings: '%s':
%s\n",
+ "kwb_fuses_a38x.txt", strerror(errno));
+ return -ENOENT;
+ }
+
kwb_dump_fuse_cmds_38x(out, sec_hdr);
fclose(out);
goto done;
@@ -1060,6 +1066,11 @@ int export_pub_kak_hash(RSA *kak, struct secure_hdr_v1
*secure_hdr)
int res;
hashf = fopen("pub_kak_hash.txt", "w");
+ if (!hashf) {
+ fprintf(stderr, "Couldn't open hash file: '%s': %s\n",
+ "pub_kak_hash.txt", strerror(errno));
+ return 1;
+ }
res = kwb_export_pubkey(kak, &secure_hdr->kak, hashf, "KAK");
--
2.30.2
Viele Grüße,
Stefan
--
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HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-51 Fax: (+49)-8142-66989-80 Email: s...@denx.de
