partx: check sysfs_init() return value [coverity scan]

Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/partx/partx.c b/partx/partx.c
index befc0d02736e33b07ce2dd0083b25f03ad17887d..43b59a254207798c991c7141d0f7b35192fe9ff4 100644 (file)
--- a/partx/partx.c
+++ b/partx/partx.c
@@ -166,7 +166,9 @@ static int get_partno_from_device(char *partition, dev_t devno)
        if (devno) {
                struct sysfs_cxt cxt;
 
-               sysfs_init(&cxt, devno, NULL);
+               if (sysfs_init(&cxt, devno, NULL))
+                       goto err;
+
                if (sysfs_read_int(&cxt, "partition", &partno) >= 0) {
                        sysfs_deinit(&cxt);
                        return partno;