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qcow2: Fix signedness bugs

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Checking for return codes < 0 isn't really going to work with unsigned
types. Use signed types instead.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Kevin Wolf 2010-02-02 15:20:57 +01:00 committed by Anthony Liguori
parent 9bc378c143
commit f4f0d391b2
2 changed files with 8 additions and 10 deletions
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12
block/qcow2-cluster.c
View File

@ -219,7 +219,8 @@ static uint64_t *l2_allocate(BlockDriverState *bs, int l1_index)
BDRVQcowState *s = bs->opaque;
int min_index;
uint64_t old_l2_offset;
uint64_t *l2_table, l2_offset;
uint64_t *l2_table;
int64_t l2_offset;
old_l2_offset = s->l1_table[l1_index];
@ -560,7 +561,8 @@ uint64_t qcow2_alloc_compressed_cluster_offset(BlockDriverState *bs,
{
BDRVQcowState *s = bs->opaque;
int l2_index, ret;
uint64_t l2_offset, *l2_table, cluster_offset;
uint64_t l2_offset, *l2_table;
int64_t cluster_offset;
int nb_csectors;
ret = get_cluster_table(bs, offset, &l2_table, &l2_offset, &l2_index);
@ -704,10 +706,8 @@ err:
*
* Return 0 on success and -errno in error cases
*/
uint64_t qcow2_alloc_cluster_offset(BlockDriverState *bs,
uint64_t offset,
int n_start, int n_end,
int *num, QCowL2Meta *m)
int qcow2_alloc_cluster_offset(BlockDriverState *bs, uint64_t offset,
int n_start, int n_end, int *num, QCowL2Meta *m)
{
BDRVQcowState *s = bs->opaque;
int l2_index, ret;

6
block/qcow2.h
View File

@ -192,10 +192,8 @@ void qcow2_encrypt_sectors(BDRVQcowState *s, int64_t sector_num,
uint64_t qcow2_get_cluster_offset(BlockDriverState *bs, uint64_t offset,
int *num);
uint64_t qcow2_alloc_cluster_offset(BlockDriverState *bs,
uint64_t offset,
int n_start, int n_end,
int *num, QCowL2Meta *m);
int qcow2_alloc_cluster_offset(BlockDriverState *bs, uint64_t offset,
int n_start, int n_end, int *num, QCowL2Meta *m);
uint64_t qcow2_alloc_compressed_cluster_offset(BlockDriverState *bs,
uint64_t offset,
int compressed_size);