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| author | Arnd Bergmann <arnd@arndb.de> | 2019-06-17 13:07:28 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2019-07-02 12:30:49 +0200 |
| commit | 6c64460cdc8be5fa074aa8fe2ae8736d5792bdc5 (patch) | |
| tree | 8bb242da4125bce1d017f6045d60e608e2c62c15 /fs/btrfs | |
| parent | 9e967495e0e0ae8bb08f52aa71b29affc7075d31 (diff) | |
| download | linux-6c64460cdc8be5fa074aa8fe2ae8736d5792bdc5.tar.bz2 | |
btrfs: shut up bogus -Wmaybe-uninitialized warning
gcc sometimes can't determine whether a variable has been initialized
when both the initialization and the use are conditional:
fs/btrfs/props.c: In function 'inherit_props':
fs/btrfs/props.c:389:4: error: 'num_bytes' may be used uninitialized in this function [-Werror=maybe-uninitialized]
btrfs_block_rsv_release(fs_info, trans->block_rsv,
This code is fine. Unfortunately, I cannot think of a good way to
rephrase it in a way that makes gcc understand this, so I add a bogus
initialization the way one should not.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: David Sterba <dsterba@suse.com>
[ gcc 8 and 9 don't emit the warning ]
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/props.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/props.c b/fs/btrfs/props.c index af109c0ba720..e0469816c678 100644 --- a/fs/btrfs/props.c +++ b/fs/btrfs/props.c @@ -337,7 +337,7 @@ static int inherit_props(struct btrfs_trans_handle *trans, for (i = 0; i < ARRAY_SIZE(prop_handlers); i++) { const struct prop_handler *h = &prop_handlers[i]; const char *value; - u64 num_bytes; + u64 num_bytes = 0; if (!h->inheritable) continue; |