nfctype3: Call write callback when writing failed

In some cases when writing was broken before allocating
the cookie (e.g. when there was not enough space on tag)
tag write callback wasn't called and writing was left 'in progress'.

diff --git a/plugins/nfctype3.c b/plugins/nfctype3.c
index 5d88952..0fb444b 100644 (file)
--- a/plugins/nfctype3.c
+++ b/plugins/nfctype3.c
@@ -669,12 +669,20 @@ static int data_write(uint32_t adapter_idx, uint32_t target_idx,
        uint16_t checksum, nmaxb;
        uint8_t i, len = 0;
        uint8_t *idm, *attr;
+       int err;
 
        DBG("");
 
        cookie = g_try_malloc0(sizeof(struct t3_cookie));
-       if (cookie == NULL)
-               return -ENOMEM;
+
+       if (cookie == NULL) {
+               err = -ENOMEM;
+
+               if (cb != NULL)
+                       cb(adapter_idx, target_idx, err);
+
+               return err;
+       }
 
        cookie->adapter_idx = adapter_idx;
        cookie->target_idx = target_idx;
@@ -724,17 +732,28 @@ static int nfctype3_write(uint32_t adapter_idx, uint32_t target_idx,
                                near_tag_io_cb cb)
 {
        struct near_tag *tag;
+       int err;
 
        DBG("");
 
-       if (ndef == NULL || cb == NULL)
-               return -EINVAL;
+       if (ndef == NULL || cb == NULL) {
+               err = -EINVAL;
+               goto out_err;
+       }
 
        tag = near_tag_get_tag(adapter_idx, target_idx);
-       if (tag == NULL)
-               return -EINVAL;
+       if (tag == NULL) {
+               err = -EINVAL;
+               goto out_err;
+       }
+
+       err = data_write(adapter_idx, target_idx, ndef, tag, cb);
 
-       return data_write(adapter_idx, target_idx, ndef, tag, cb);
+out_err:
+       if (cb != NULL)
+               cb(adapter_idx, target_idx, err);
+
+       return err;
 }
 
 static int check_presence(uint8_t *resp, int length, void *data)