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vvfat: Fix memory leak

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Don't leak 'cluster' in the mapping == NULL case. Found by Coverity
(CID 1055918).

Fixes: 8d9401c279
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
This commit is contained in:
Kevin Wolf 2018-11-14 13:50:16 +01:00
parent 441f6692ec
commit 443ba6befa
1 changed files with 3 additions and 3 deletions
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6
block/vvfat.c
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@ -2510,7 +2510,7 @@ static int commit_one_file(BDRVVVFATState* s,
uint32_t first_cluster = c;
mapping_t* mapping = find_mapping_for_cluster(s, c);
uint32_t size = filesize_of_direntry(direntry);
char* cluster = g_malloc(s->cluster_size);
char *cluster;
uint32_t i;
int fd = 0;
@ -2528,17 +2528,17 @@ static int commit_one_file(BDRVVVFATState* s,
if (fd < 0) {
fprintf(stderr, "Could not open %s... (%s, %d)\n", mapping->path,
strerror(errno), errno);
g_free(cluster);
return fd;
}
if (offset > 0) {
if (lseek(fd, offset, SEEK_SET) != offset) {
qemu_close(fd);
g_free(cluster);
return -3;
}
}
cluster = g_malloc(s->cluster_size);
while (offset < size) {
uint32_t c1;
int rest_size = (size - offset > s->cluster_size ?