From 5a299e56855cec5714fc54c1a0377ea6aa37def4 Mon Sep 17 00:00:00 2001
From: Wim Taymans <wtaymans@redhat.com>
Date: Fri, 4 Nov 2022 11:00:56 +0100
Subject: [PATCH] v4l2: improve debug

---
 pipewire-v4l2/src/pipewire-v4l2.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pipewire-v4l2/src/pipewire-v4l2.c b/pipewire-v4l2/src/pipewire-v4l2.c
index 0461d2653..561ef4f5f 100644
--- a/pipewire-v4l2/src/pipewire-v4l2.c
+++ b/pipewire-v4l2/src/pipewire-v4l2.c
@@ -1743,6 +1743,8 @@ static int vidioc_reqbufs(struct file *file, struct v4l2_requestbuffers *arg)
 	pw_log_info("result count: %u", arg->count);
 
 exit_unlock:
+	if (res < 0)
+		pw_log_info("error : %s", spa_strerror(res));
 	pw_thread_loop_unlock(file->loop);
 	return res;
 }