OMAPDSS: VENC: fix NULL pointer dereference in DSS2 VENC sysfs debug attr on OMAP4
[zen-stable.git] / fs / efs / file.c
blob1ccb364ffa63b2927c9a838008b4abb611f71e55
1 /*
2 * file.c
4 * Copyright (c) 1999 Al Smith
6 * Portions derived from work (c) 1995,1996 Christian Vogelgsang.
7 */
9 #include <linux/buffer_head.h>
10 #include "efs.h"
12 int efs_get_block(struct inode *inode, sector_t iblock,
13 struct buffer_head *bh_result, int create)
15 int error = -EROFS;
16 long phys;
18 if (create)
19 return error;
20 if (iblock >= inode->i_blocks) {
21 #ifdef DEBUG
23 * i have no idea why this happens as often as it does
25 printk(KERN_WARNING "EFS: bmap(): block %d >= %ld (filesize %ld)\n",
26 block,
27 inode->i_blocks,
28 inode->i_size);
29 #endif
30 return 0;
32 phys = efs_map_block(inode, iblock);
33 if (phys)
34 map_bh(bh_result, inode->i_sb, phys);
35 return 0;
38 int efs_bmap(struct inode *inode, efs_block_t block) {
40 if (block < 0) {
41 printk(KERN_WARNING "EFS: bmap(): block < 0\n");
42 return 0;
45 /* are we about to read past the end of a file ? */
46 if (!(block < inode->i_blocks)) {
47 #ifdef DEBUG
49 * i have no idea why this happens as often as it does
51 printk(KERN_WARNING "EFS: bmap(): block %d >= %ld (filesize %ld)\n",
52 block,
53 inode->i_blocks,
54 inode->i_size);
55 #endif
56 return 0;
59 return efs_map_block(inode, block);