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dump.c: Fix memory leak issue in cleanup processing for dump_init() 

In dump_init(), when failure occurs, need notice about 'fd' and memory
mapping. So call dump_cleanup() for it (need let all initializations at
front).

Also simplify dump_cleanup(): remove redundant 'ret' and redundant 'fd'
checking.

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
This commit is contained in:
Chen Gang 2014-08-03 23:28:56 +08:00 committed by Luiz Capitulino
parent 4bb08af34e
commit 2928207ac1
1 changed files with 5 additions and 13 deletions
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18
dump.c
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@ -71,18 +71,14 @@ uint64_t cpu_to_dump64(DumpState *s, uint64_t val)
static int dump_cleanup(DumpState *s)
{
int ret = 0;
guest_phys_blocks_free(&s->guest_phys_blocks);
memory_mapping_list_free(&s->list);
if (s->fd != -1) {
close(s->fd);
}
close(s->fd);
if (s->resume) {
vm_start();
}
return ret;
return 0;
}
static void dump_error(DumpState *s, const char *reason)
@ -1499,6 +1495,8 @@ static int dump_init(DumpState *s, int fd, bool has_format,
s->begin = begin;
s->length = length;
memory_mapping_list_init(&s->list);
guest_phys_blocks_init(&s->guest_phys_blocks);
guest_phys_blocks_append(&s->guest_phys_blocks);
@ -1526,7 +1524,6 @@ static int dump_init(DumpState *s, int fd, bool has_format,
}
/* get memory mapping */
memory_mapping_list_init(&s->list);
if (paging) {
qemu_get_guest_memory_mapping(&s->list, &s->guest_phys_blocks, &err);
if (err != NULL) {
@ -1622,12 +1619,7 @@ static int dump_init(DumpState *s, int fd, bool has_format,
return 0;
cleanup:
guest_phys_blocks_free(&s->guest_phys_blocks);
if (s->resume) {
vm_start();
}
dump_cleanup(s);
return -1;
}