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-rw-r--r--fs/udf/super.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 64f2b7334d08..3286db047a40 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -175,7 +175,7 @@ static void init_once(void *foo)
inode_init_once(&ei->vfs_inode);
}
-static int init_inodecache(void)
+static int __init init_inodecache(void)
{
udf_inode_cachep = kmem_cache_create("udf_inode_cache",
sizeof(struct udf_inode_info),
@@ -505,6 +505,7 @@ static int udf_parse_options(char *options, struct udf_options *uopt,
while ((p = strsep(&options, ",")) != NULL) {
substring_t args[MAX_OPT_ARGS];
int token;
+ unsigned n;
if (!*p)
continue;
@@ -516,7 +517,10 @@ static int udf_parse_options(char *options, struct udf_options *uopt,
case Opt_bs:
if (match_int(&args[0], &option))
return 0;
- uopt->blocksize = option;
+ n = option;
+ if (n != 512 && n != 1024 && n != 2048 && n != 4096)
+ return 0;
+ uopt->blocksize = n;
uopt->flags |= (1 << UDF_FLAG_BLOCKSIZE_SET);
break;
case Opt_unhide: