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block: Error parameter for open functions

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Add an Error ** parameter to bdrv_open, bdrv_file_open and associated
functions to allow more specific error messages.

Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Max Reitz 2013-09-05 14:45:29 +02:00 • committed by Kevin Wolf
parent d5124c00d8
commit 34b5d2c68e
17 changed files with 163 additions and 85 deletions
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6
block/vvfat.c
View file

@ -2910,6 +2910,7 @@ static int enable_write_target(BDRVVVFATState *s)
{
BlockDriver *bdrv_qcow;
QEMUOptionParameter *options;
Error *local_err = NULL;
int ret;
int size = sector2cluster(s, s->sector_count);
s->used_clusters = calloc(size, 1);
@ -2935,8 +2936,11 @@ static int enable_write_target(BDRVVVFATState *s)
s->qcow = bdrv_new("");
ret = bdrv_open(s->qcow, s->qcow_filename, NULL,
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_NO_FLUSH, bdrv_qcow);
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_NO_FLUSH, bdrv_qcow,
&local_err);
if (ret < 0) {
qerror_report_err(local_err);
error_free(local_err);
bdrv_unref(s->qcow);
goto err;
}