fix null pointer auto of memory kds net

diff --git a/src/kds_s2000w_net.c b/src/kds_s2000w_net.c
index eb2225c7bfe0b550072253ec53db5c7f30812cf0..6a184d9eae1b51335fce4a8cd6c5eba3fddad0e1 100644 (file)
--- a/src/kds_s2000w_net.c
+++ b/src/kds_s2000w_net.c
@@ -43,10 +43,16 @@ SANE_Status sane_kds_s2000w_net_get_devices(SANE_Device*** device_list,
        if (local_only)
                return SANE_STATUS_NO_MEM;
 
-       if (device_info_ptr == NULL) {
-               device_info_ptr = malloc(sizeof(SANE_Device*) * 2);
-               device_info_ptr[0] = malloc(sizeof(SANE_Device));
-       }
+       if (device_info_ptr != NULL)
+               return SANE_STATUS_GOOD;
+
+       device_info_ptr = malloc(sizeof(SANE_Device*) * 2);
+       if (device_info_ptr == NULL)
+               return SANE_STATUS_NO_MEM;
+
+       device_info_ptr[0] = malloc(sizeof(SANE_Device));
+       if (device_info_ptr[0] == NULL)
+               return  SANE_STATUS_NO_MEM;
 
        device_info_ptr[0]->name = NAME;
        device_info_ptr[0]->vendor = VENDOR;