diff options
Diffstat (limited to 'fs/vboxsf/super.c')
| -rw-r--r-- | fs/vboxsf/super.c | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/fs/vboxsf/super.c b/fs/vboxsf/super.c index 4f5e59f06284..37dd3fe5b1e9 100644 --- a/fs/vboxsf/super.c +++ b/fs/vboxsf/super.c @@ -21,10 +21,7 @@ #define VBOXSF_SUPER_MAGIC 0x786f4256 /* 'VBox' little endian */ -#define VBSF_MOUNT_SIGNATURE_BYTE_0 ('\000') -#define VBSF_MOUNT_SIGNATURE_BYTE_1 ('\377') -#define VBSF_MOUNT_SIGNATURE_BYTE_2 ('\376') -#define VBSF_MOUNT_SIGNATURE_BYTE_3 ('\375') +static const unsigned char VBSF_MOUNT_SIGNATURE[4] = "\000\377\376\375"; static int follow_symlinks; module_param(follow_symlinks, int, 0444); @@ -386,12 +383,7 @@ fail_nomem: static int vboxsf_parse_monolithic(struct fs_context *fc, void *data) { - unsigned char *options = data; - - if (options && options[0] == VBSF_MOUNT_SIGNATURE_BYTE_0 && - options[1] == VBSF_MOUNT_SIGNATURE_BYTE_1 && - options[2] == VBSF_MOUNT_SIGNATURE_BYTE_2 && - options[3] == VBSF_MOUNT_SIGNATURE_BYTE_3) { + if (data && !memcmp(data, VBSF_MOUNT_SIGNATURE, 4)) { vbg_err("vboxsf: Old binary mount data not supported, remove obsolete mount.vboxsf and/or update your VBoxService.\n"); return -EINVAL; } |