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Diffstat (limited to 'fs/udf')
-rw-r--r--fs/udf/inode.c51
1 files changed, 39 insertions, 12 deletions
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index bf7de0bdbab..5b82e489af7 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -49,6 +49,7 @@ MODULE_LICENSE("GPL");
static mode_t udf_convert_permissions(struct fileEntry *);
static int udf_update_inode(struct inode *, int);
static void udf_fill_inode(struct inode *, struct buffer_head *);
+static int udf_alloc_i_data(struct inode *inode, size_t size);
static struct buffer_head *inode_getblk(struct inode *, sector_t, int *,
long *, int *);
static int8_t udf_insert_aext(struct inode *, struct extent_position,
@@ -734,7 +735,7 @@ static void udf_split_extents(struct inode *inode, int *c, int offset, int newbl
(*c) ++;
(*endnum) ++;
}
-
+
laarr[curr].extLocation.logicalBlockNum = newblocknum;
if (etype == (EXT_NOT_RECORDED_NOT_ALLOCATED >> 30))
laarr[curr].extLocation.partitionReferenceNum =
@@ -836,7 +837,7 @@ static void udf_prealloc_extents(struct inode *inode, int c, int lastblock,
{
numalloc -= elen;
if (*endnum > (i+1))
- memmove(&laarr[i], &laarr[i+1],
+ memmove(&laarr[i], &laarr[i+1],
sizeof(long_ad) * (*endnum - (i+1)));
i --;
(*endnum) --;
@@ -1024,7 +1025,7 @@ void udf_truncate(struct inode * inode)
{
block_truncate_page(inode->i_mapping, inode->i_size, udf_get_block);
udf_truncate_extents(inode);
- }
+ }
inode->i_mtime = inode->i_ctime = current_fs_time(inode->i_sb);
if (IS_SYNC(inode))
@@ -1087,10 +1088,10 @@ __udf_read_inode(struct inode *inode)
{
kernel_lb_addr loc;
ie = (struct indirectEntry *)ibh->b_data;
-
+
loc = lelb_to_cpu(ie->indirectICB.extLocation);
-
- if (ie->indirectICB.extLength &&
+
+ if (ie->indirectICB.extLength &&
(nbh = udf_read_ptagged(inode->i_sb, loc, 0, &ident)))
{
if (ident == TAG_IDENT_FE ||
@@ -1156,14 +1157,22 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
{
UDF_I_EFE(inode) = 1;
UDF_I_USE(inode) = 0;
- UDF_I_DATA(inode) = kmalloc(inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry), GFP_KERNEL);
+ if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry)))
+ {
+ make_bad_inode(inode);
+ return;
+ }
memcpy(UDF_I_DATA(inode), bh->b_data + sizeof(struct extendedFileEntry), inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry));
}
else if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_FE)
{
UDF_I_EFE(inode) = 0;
UDF_I_USE(inode) = 0;
- UDF_I_DATA(inode) = kmalloc(inode->i_sb->s_blocksize - sizeof(struct fileEntry), GFP_KERNEL);
+ if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize - sizeof(struct fileEntry)))
+ {
+ make_bad_inode(inode);
+ return;
+ }
memcpy(UDF_I_DATA(inode), bh->b_data + sizeof(struct fileEntry), inode->i_sb->s_blocksize - sizeof(struct fileEntry));
}
else if (le16_to_cpu(fe->descTag.tagIdent) == TAG_IDENT_USE)
@@ -1173,7 +1182,11 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
UDF_I_LENALLOC(inode) =
le32_to_cpu(
((struct unallocSpaceEntry *)bh->b_data)->lengthAllocDescs);
- UDF_I_DATA(inode) = kmalloc(inode->i_sb->s_blocksize - sizeof(struct unallocSpaceEntry), GFP_KERNEL);
+ if (udf_alloc_i_data(inode, inode->i_sb->s_blocksize - sizeof(struct unallocSpaceEntry)))
+ {
+ make_bad_inode(inode);
+ return;
+ }
memcpy(UDF_I_DATA(inode), bh->b_data + sizeof(struct unallocSpaceEntry), inode->i_sb->s_blocksize - sizeof(struct unallocSpaceEntry));
return;
}
@@ -1191,7 +1204,7 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
inode->i_nlink = le16_to_cpu(fe->fileLinkCount);
if (!inode->i_nlink)
inode->i_nlink = 1;
-
+
inode->i_size = le64_to_cpu(fe->informationLength);
UDF_I_LENEXTENTS(inode) = inode->i_size;
@@ -1243,7 +1256,7 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
}
else
{
- inode->i_blocks = le64_to_cpu(efe->logicalBlocksRecorded) <<
+ inode->i_blocks = le64_to_cpu(efe->logicalBlocksRecorded) <<
(inode->i_sb->s_blocksize_bits - 9);
if ( udf_stamp_to_time(&convtime, &convtime_usec,
@@ -1374,6 +1387,20 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh)
}
}
+static int udf_alloc_i_data(struct inode *inode, size_t size)
+{
+ UDF_I_DATA(inode) = kmalloc(size, GFP_KERNEL);
+
+ if (!UDF_I_DATA(inode))
+ {
+ printk(KERN_ERR "udf:udf_alloc_i_data (ino %ld) no free memory\n",
+ inode->i_ino);
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
static mode_t
udf_convert_permissions(struct fileEntry *fe)
{
@@ -2072,7 +2099,7 @@ int8_t udf_delete_aext(struct inode *inode, struct extent_position epos,
mark_buffer_dirty_inode(oepos.bh, inode);
}
}
-
+
brelse(epos.bh);
brelse(oepos.bh);
return (elen >> 30);