[Qemu-devel] [PATCH 11/20] qcow: correctly propagate errors

[Paolo Bonzini <pbonzini@redhat.com>]

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 block/qcow.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/block/qcow.c b/block/qcow.c
index 948b0c5..23bc691 100644
--- a/block/qcow.c
+++ b/block/qcow.c
@@ -119,17 +119,19 @@ static int qcow_open(BlockDriverState *bs, QDict *options, int flags,
     if (header.version != QCOW_VERSION) {
         char version[64];
         snprintf(version, sizeof(version), "QCOW version %d", header.version);
-        qerror_report(QERR_UNKNOWN_BLOCK_FORMAT_FEATURE,
-            bs->device_name, "qcow", version);
+        error_set(errp, QERR_UNKNOWN_BLOCK_FORMAT_FEATURE,
+                  bs->device_name, "qcow", version);
         ret = -ENOTSUP;
         goto fail;
     }
 
     if (header.size <= 1 || header.cluster_bits < 9) {
+        error_setg(errp, "invalid value in qcow header\n");
         ret = -EINVAL;
         goto fail;
     }
     if (header.crypt_method > QCOW_CRYPT_AES) {
+        error_setg(errp, "invalid encryption method in qcow header\n");
         ret = -EINVAL;
         goto fail;
     }
@@ -668,7 +670,6 @@ static int qcow_create(const char *filename, QEMUOptionParameter *options,
     int64_t total_size = 0;
     const char *backing_file = NULL;
     int flags = 0;
-    Error *local_err = NULL;
     int ret;
     BlockDriverState *qcow_bs;
 
@@ -684,18 +685,13 @@ static int qcow_create(const char *filename, QEMUOptionParameter *options,
         options++;
     }
 
-    ret = bdrv_create_file(filename, options, &local_err);
+    ret = bdrv_create_file(filename, options, errp);
     if (ret < 0) {
-        qerror_report_err(local_err);
-        error_free(local_err);
         return ret;
     }
 
-    ret = bdrv_file_open(&qcow_bs, filename, NULL, NULL, BDRV_O_RDWR,
-                         &local_err);
+    ret = bdrv_file_open(&qcow_bs, filename, NULL, NULL, BDRV_O_RDWR, errp);
     if (ret < 0) {
-        qerror_report_err(local_err);
-        error_free(local_err);
         return ret;
     }
 
-- 
1.8.5.3