diff options
| author | Jorgen Lundman | 2014-11-07 10:08:35 +0900 |
|---|---|---|
| committer | Tom Rini | 2014-11-10 16:25:27 -0500 |
| commit | e183de0d3efccd77b4a7b9d1395a9f29bba68e26 (patch) | |
| tree | dbae37bcf493dd637e0bcae5aa9cde4d0ac7d1f1 /fs | |
| parent | 6c5f4aef02ae76357a5d85303c9890619aad0293 (diff) | |
ZFS: Clean up cppcheck warnings where relevant, leaked memory etc
In a message from Wolfgang Denk highlighting warnings from cppcheck,
the patch will address those that are correctly diagnosed. Some are
false-positives:
> [fs/zfs/zfs.c:937]: (error) Memory leak: l
dmu_read() allocates "l" if successful, so error-case should not free
it.
> [fs/zfs/zfs.c:1141]: (error) Memory leak: dnbuf
dmu_read() allocates "dnbuf" if successful, so error-case should not
free it.
> [fs/zfs/zfs.c:1372]: (error) Memory leak: osp
zio_read() allocates "osp" if successful, so error-case should
not free it.
> [fs/zfs/zfs.c:1726]: (error) Memory leak: nvlist
int_zfs_fetch_nvlist() allocates "nvlist" if successful, so error-case
should not free it.
Signed-off-by: Jorgen Lundman <lundman@lundman.net>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/zfs/zfs.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/zfs/zfs.c b/fs/zfs/zfs.c index 818d3d926d2..fb2b3ee089e 100644 --- a/fs/zfs/zfs.c +++ b/fs/zfs/zfs.c @@ -736,7 +736,7 @@ zap_hash(uint64_t salt, const char *name) uint64_t crc = salt; if (table[128] == 0) { - uint64_t *ct; + uint64_t *ct = NULL; int i, j; for (i = 0; i < 256; i++) { for (ct = table + i, *ct = i, j = 8; j > 0; j--) @@ -1060,6 +1060,7 @@ zap_lookup(dnode_end_t *zap_dnode, char *name, uint64_t *val, } printf("unknown ZAP type\n"); + free(zapbuf); return ZFS_ERR_BAD_FS; } @@ -1094,6 +1095,7 @@ zap_iterate(dnode_end_t *zap_dnode, return ret; } printf("unknown ZAP type\n"); + free(zapbuf); return 0; } @@ -1865,6 +1867,7 @@ zfs_mount(device_t dev) ubbest = malloc(sizeof(*ubbest)); if (!ubbest) { + free(ub_array); zfs_unmount(data); return 0; } @@ -1953,6 +1956,7 @@ zfs_mount(device_t dev) if (err) { printf("couldn't zio_read object directory\n"); zfs_unmount(data); + free(osp); free(ubbest); return 0; } @@ -2052,6 +2056,9 @@ zfs_open(struct zfs_file *file, const char *fsfilename) hdrsize = SA_HDR_SIZE(((sa_hdr_phys_t *) sahdrp)); file->size = *(uint64_t *) ((char *) sahdrp + hdrsize + SA_SIZE_OFFSET); + if ((data->dnode.dn.dn_bonuslen == 0) && + (data->dnode.dn.dn_flags & DNODE_FLAG_SPILL_BLKPTR)) + free(sahdrp); } else { file->size = zfs_to_cpu64(((znode_phys_t *) DN_BONUS(&data->dnode.dn))->zp_size, data->dnode.endian); } |