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qcow2: Use better type for numerical snapshot ID 

When trying to find a new snapshot ID, the existing ones are converted
to integers using strtoul. This function returns an unsigned long,
therefore its result should be saved in an unsigned long as well.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2013-10-09 14:42:47 +02:00 committed by Kevin Wolf
parent 84757f7e67
commit 00c49b21e7
1 changed files with 3 additions and 2 deletions
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5
block/qcow2-snapshot.c
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@ -292,7 +292,8 @@ static void find_new_snapshot_id(BlockDriverState *bs,
{
BDRVQcowState *s = bs->opaque;
QCowSnapshot *sn;
int i, id, id_max = 0;
int i;
unsigned long id, id_max = 0;
for(i = 0; i < s->nb_snapshots; i++) {
sn = s->snapshots + i;
@ -300,7 +301,7 @@ static void find_new_snapshot_id(BlockDriverState *bs,
if (id > id_max)
id_max = id;
}
snprintf(id_str, id_str_size, "%d", id_max + 1);
snprintf(id_str, id_str_size, "%lu", id_max + 1);
}
static int find_snapshot_by_id_and_name(BlockDriverState *bs,