Fix some problems found by Coverity static analysis.

[platform/upstream/cryptsetup.git] / lib / utils_devpath.c

diff --git a/lib/utils_devpath.c b/lib/utils_devpath.c
index f22f422..472569e 100644 (file)
--- a/lib/utils_devpath.c
+++ b/lib/utils_devpath.c
@@ -139,7 +139,7 @@ char *crypt_lookup_dev(const char *dev_id)
        if (snprintf(path, sizeof(path), "/sys/dev/block/%s", dev_id) < 0)
                return NULL;
 
-       len = readlink(path, link, sizeof(link));
+       len = readlink(path, link, sizeof(link) - 1);
        if (len < 0) {
                /* Without /sys use old scan */
                if (stat("/sys/dev/block", &st) < 0)