tests/etnaviv_2d_test: explain the errors

Just so that it's obvious what failed and why.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

diff --git a/tests/etnaviv/etnaviv_2d_test.c b/tests/etnaviv/etnaviv_2d_test.c
index 8dd77b6..eb9dfa5 100644 (file)
--- a/tests/etnaviv/etnaviv_2d_test.c
+++ b/tests/etnaviv/etnaviv_2d_test.c
@@ -162,9 +162,16 @@ int main(int argc, char *argv[])
        drmVersionPtr version;
        int fd, ret = 0;
 
+       if (argc < 2) {
+               fprintf(stderr, "Usage: %s /dev/dri/<device>\n", argv[0]);
+               return 1;
+       }
+
        fd = open(argv[1], O_RDWR);
-       if (fd < 0)
+       if (fd < 0) {
+               perror(argv[1]);
                return 1;
+       }
 
        version = drmGetVersion(fd);
        if (version) {
@@ -178,6 +185,7 @@ int main(int argc, char *argv[])
 
        dev = etna_device_new(fd);
        if (!dev) {
+               perror("etna_device_new");
                ret = 2;
                goto out;
        }
@@ -185,18 +193,21 @@ int main(int argc, char *argv[])
        /* TODO: we assume that core 0 is a 2D capable one */
        gpu = etna_gpu_new(dev, 0);
        if (!gpu) {
+               perror("etna_gpu_new");
                ret = 3;
                goto out_device;
        }
 
        pipe = etna_pipe_new(gpu, ETNA_PIPE_2D);
        if (!pipe) {
+               perror("etna_pipe_new");
                ret = 4;
                goto out_gpu;
        }
 
        bmp = etna_bo_new(dev, bmp_size, ETNA_BO_UNCACHED);
        if (!bmp) {
+               perror("etna_bo_new");
                ret = 5;
                goto out_pipe;
        }
@@ -204,6 +215,7 @@ int main(int argc, char *argv[])
 
        stream = etna_cmd_stream_new(pipe, 0x300, NULL, NULL);
        if (!stream) {
+               perror("etna_cmd_stream_new");
                ret = 6;
                goto out_bo;
        }