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-rw-r--r--tools/csr.c2
-rw-r--r--tools/oui.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/tools/csr.c b/tools/csr.c
index 698122dc..3f671740 100644
--- a/tools/csr.c
+++ b/tools/csr.c
@@ -2697,7 +2697,7 @@ int psr_read(const char *filename)
}
map = mmap(0, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
- if (map == MAP_FAILED) {
+ if (!map || map == MAP_FAILED) {
err = -errno;
goto close;
}
diff --git a/tools/oui.c b/tools/oui.c
index 0a1d67bc..6ebf91a5 100644
--- a/tools/oui.c
+++ b/tools/oui.c
@@ -65,7 +65,7 @@ char *ouitocomp(const char *oui)
memset(str, 0, 128);
map = mmap(0, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
- if (map == MAP_FAILED) {
+ if (!map || map == MAP_FAILED) {
free(str);
close(fd);
return NULL;