Changeset 8fb674b in mainline for uspace/srv/hid/input/input.c

Timestamp:

2020-12-31T21:27:13Z (3 years ago)

Author:

Matthieu Riolo <matthieu.riolo@…>

Parents:

6a208fc

git-author:

Matthieu Riolo <matthieu.riolo@…> (2020-06-27 19:08:36)

git-committer:

Matthieu Riolo <matthieu.riolo@…> (2020-12-31 21:27:13)

Message:

correcting usage of async_data_read_receive() in srv/input

File:

• uspace/srv/hid/input/input.c (modified) (2 diffs)

uspace/srv/hid/input/input.c

@@ -50 +50 @@
 #include <ipc/input.h>
 #include <loc.h>
+#include <macros.h>
 #include <ns.h>
 #include <stdbool.h>
@@ -157 +158 @@
         const char *layout_name = layout_active->name;
         size_t length = str_size(layout_name) + 1;
-        ipc_call_t id;
-
-        async_answer_1(call, EOK, length);
-        if (async_data_read_receive(&id, NULL)) {
-                async_data_read_finalize(&id, layout_name, length);
-        }
+        ipc_call_t rec_call;
+
+        size_t max_size;
+        if (!async_data_read_receive(&rec_call, &max_size)) {
+                async_answer_0(&rec_call, EREFUSED);
+                async_answer_0(call, EREFUSED);
+                return;
+        }
+
+        errno_t rc = async_data_read_finalize(&rec_call, layout_name,
+            min(length, max_size));
+        async_answer_0(call, rc);
 }