1 files changed, 39 insertions, 12 deletions

diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index bf7de0b..5b82e48 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);