block: Error parameter for open functions

[mirror_qemu.git] / block / cow.c

diff --git a/block/cow.c b/block/cow.c
index 3ae1b5cdc99f2c8e071c6fe69ddf7a7c9668e88a..3a93ed99669cf9ede23a9cad41cfdc49684d4c92 100644 (file)
--- a/block/cow.c
+++ b/block/cow.c
@@ -295,12 +295,14 @@ static void cow_close(BlockDriverState *bs)
 {
 }
 
-static int cow_create(const char *filename, QEMUOptionParameter *options)
+static int cow_create(const char *filename, QEMUOptionParameter *options,
+                      Error **errp)
 {
     struct cow_header_v2 cow_header;
     struct stat st;
     int64_t image_sectors = 0;
     const char *image_filename = NULL;
+    Error *local_err = NULL;
     int ret;
     BlockDriverState *cow_bs;
 
@@ -319,8 +321,10 @@ static int cow_create(const char *filename, QEMUOptionParameter *options)
         return ret;
     }
 
-    ret = bdrv_file_open(&cow_bs, filename, NULL, BDRV_O_RDWR);
+    ret = bdrv_file_open(&cow_bs, filename, NULL, BDRV_O_RDWR, &local_err);
     if (ret < 0) {
+        qerror_report_err(local_err);
+        error_free(local_err);
         return ret;
     }