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qemu-io: Fix memory leak 

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
(cherry picked from commit 40a0d7c395)
This commit is contained in:
Kevin Wolf 2009-11-18 10:42:59 +01:00 committed by Anthony Liguori
parent 00e8277b83
commit 73b4ac5cd8
1 changed files with 6 additions and 4 deletions
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10
qemu-io.c
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@ -129,7 +129,8 @@ create_iovec(QEMUIOVector *qiov, char **argv, int nr_iov, int pattern)
{
size_t *sizes = calloc(nr_iov, sizeof(size_t));
size_t count = 0;
void *buf, *p;
void *buf = NULL;
void *p;
int i;
for (i = 0; i < nr_iov; i++) {
@ -139,19 +140,19 @@ create_iovec(QEMUIOVector *qiov, char **argv, int nr_iov, int pattern)
len = cvtnum(arg);
if (len < 0) {
printf("non-numeric length argument -- %s\n", arg);
return NULL;
goto fail;
}
/* should be SIZE_T_MAX, but that doesn't exist */
if (len > UINT_MAX) {
printf("too large length argument -- %s\n", arg);
return NULL;
goto fail;
}
if (len & 0x1ff) {
printf("length argument %lld is not sector aligned\n",
len);
return NULL;
goto fail;
}
sizes[i] = len;
@ -167,6 +168,7 @@ create_iovec(QEMUIOVector *qiov, char **argv, int nr_iov, int pattern)
p += sizes[i];
}
fail:
free(sizes);
return buf;
}