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qcow2: Return 0/-errno in write_l2_entries

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Change write_l2_entries to return the real error code instead of -1.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2010-03-23 12:49:17 +01:00
parent 50779cc264
commit 79a31189d4
1 changed files with 5 additions and 4 deletions
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9
block/qcow2-cluster.c
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@ -627,12 +627,13 @@ static int write_l2_entries(BDRVQcowState *s, uint64_t *l2_table,
int start_offset = (8 * l2_index) & ~511; int start_offset = (8 * l2_index) & ~511;
int end_offset = (8 * (l2_index + num) + 511) & ~511; int end_offset = (8 * (l2_index + num) + 511) & ~511;
size_t len = end_offset - start_offset; size_t len = end_offset - start_offset;
int ret;
BLKDBG_EVENT(s->hd, BLKDBG_L2_UPDATE); BLKDBG_EVENT(s->hd, BLKDBG_L2_UPDATE);
if (bdrv_pwrite(s->hd, l2_offset + start_offset, &l2_table[l2_start_index], ret = bdrv_pwrite(s->hd, l2_offset + start_offset,
len) != len) &l2_table[l2_start_index], len);
{ if (ret < 0) {
return -1; return ret;
} }
return 0; return 0;