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| author | Chengguang Xu <cgxu519@mykernel.net> | 2019-10-23 21:56:43 +0800 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2019-10-24 09:24:40 +0200 |
| commit | acd1f04679803af84e7ab76f37df30d8598b07b9 (patch) | |
| tree | 56b9db6cac3d11df1dcc1d48e36f98dc33cc2cef /fs/ext2 | |
| parent | ba1af2e47446ac353395b4c274408944284ceeaa (diff) | |
| download | linux-stable-acd1f04679803af84e7ab76f37df30d8598b07b9.tar.gz linux-stable-acd1f04679803af84e7ab76f37df30d8598b07b9.tar.bz2 linux-stable-acd1f04679803af84e7ab76f37df30d8598b07b9.zip | |
ext2: return error when fail to allocating memory in ioctl
Currently, we do not check memory allocation
result for ei->i_block_alloc_info in ioctl,
this patch checks it and returns error in
failure case.
Link: https://lore.kernel.org/r/20191023135643.28837-1-cgxu519@mykernel.net
Signed-off-by: Chengguang Xu <cgxu519@mykernel.net>
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/ext2')
| -rw-r--r-- | fs/ext2/ioctl.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/ext2/ioctl.c b/fs/ext2/ioctl.c index 1b853fb0b163..32a8d10b579d 100644 --- a/fs/ext2/ioctl.c +++ b/fs/ext2/ioctl.c @@ -145,10 +145,13 @@ setversion_out: if (ei->i_block_alloc_info){ struct ext2_reserve_window_node *rsv = &ei->i_block_alloc_info->rsv_window_node; rsv->rsv_goal_size = rsv_window_size; + } else { + ret = -ENOMEM; } + mutex_unlock(&ei->truncate_mutex); mnt_drop_write_file(filp); - return 0; + return ret; } default: return -ENOTTY; |