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udf: fix 3 signedness & 1 unitialized variable warnings 

sparse generated:
fs/udf/inode.c:324:41: warning: incorrect type in argument 4 (different signedness)
fs/udf/inode.c:324:41:    expected long *<noident>
fs/udf/inode.c:324:41:    got unsigned long *<noident>

inode_getblk always set 4th argument to uint32_t value
3rd parameter of map_bh is sector_t (which is unsigned long or u64)
so convert phys value to sector_t

fs/udf/inode.c:1818:47: warning: incorrect type in argument 3 (different signedness)
fs/udf/inode.c:1818:47:    expected int *<noident>
fs/udf/inode.c:1818:47:    got unsigned int *<noident>
fs/udf/inode.c:1826:46: warning: incorrect type in argument 3 (different signedness)
fs/udf/inode.c:1826:46:    expected int *<noident>
fs/udf/inode.c:1826:46:    got unsigned int *<noident>

udf_get_filelongad and udf_get_shortad are called always for uint32_t
values (struct extent_position->offset), so it's safe to convert offset
parameter to uint32_t

gcc warned:
fs/udf/inode.c: In function 'udf_get_block':
fs/udf/inode.c:299: warning: 'phys' may be used uninitialized in this function
initialize it to 0 (if someday someone will break inode_getblk we will catch it immediately)

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Ben Fennema <bfennema@falcon.csc.calpoly.edu>
Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Marcin Slusarz 2008-02-08 04:20:48 -08:00 committed by Linus Torvalds
parent 934c5e6019
commit 1ed161718a
3 changed files with 9 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
fs/udf/directory.c
View File

@ -282,7 +282,7 @@ static extent_ad *udf_get_fileextent(void *buffer, int bufsize, int *offset)
}
#endif
short_ad *udf_get_fileshortad(uint8_t *ptr, int maxoffset, int *offset,
short_ad *udf_get_fileshortad(uint8_t *ptr, int maxoffset, uint32_t *offset,
int inc)
{
short_ad *sa;
@ -292,7 +292,7 @@ short_ad *udf_get_fileshortad(uint8_t *ptr, int maxoffset, int *offset,
return NULL;
}
if ((*offset < 0) || ((*offset + sizeof(short_ad)) > maxoffset))
if ((*offset + sizeof(short_ad)) > maxoffset)
return NULL;
else {
sa = (short_ad *)ptr;
@ -305,7 +305,7 @@ short_ad *udf_get_fileshortad(uint8_t *ptr, int maxoffset, int *offset,
return sa;
}
long_ad *udf_get_filelongad(uint8_t *ptr, int maxoffset, int *offset, int inc)
long_ad *udf_get_filelongad(uint8_t *ptr, int maxoffset, uint32_t *offset, int inc)
{
long_ad *la;
@ -314,7 +314,7 @@ long_ad *udf_get_filelongad(uint8_t *ptr, int maxoffset, int *offset, int inc)
return NULL;
}
if ((*offset < 0) || ((*offset + sizeof(long_ad)) > maxoffset))
if ((*offset + sizeof(long_ad)) > maxoffset)
return NULL;
else {
la = (long_ad *)ptr;

6
fs/udf/inode.c
View File

@ -52,7 +52,7 @@ 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 *);
sector_t *, int *);
static int8_t udf_insert_aext(struct inode *, struct extent_position,
kernel_lb_addr, uint32_t);
static void udf_split_extents(struct inode *, int *, int, int,
@ -307,7 +307,7 @@ static int udf_get_block(struct inode *inode, sector_t block,
{
int err, new;
struct buffer_head *bh;
unsigned long phys;
sector_t phys = 0;
struct udf_inode_info *iinfo;
if (!create) {
@ -489,7 +489,7 @@ out:
}
static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
int *err, long *phys, int *new)
int *err, sector_t *phys, int *new)
{
static sector_t last_block;
struct buffer_head *result = NULL;

4
fs/udf/udfdecl.h
View File

@ -188,8 +188,8 @@ extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *,
sector_t *);
extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize,
int *offset);
extern long_ad *udf_get_filelongad(uint8_t *, int, int *, int);
extern short_ad *udf_get_fileshortad(uint8_t *, int, int *, int);
extern long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int);
extern short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int);
/* crc.c */
extern uint16_t udf_crc(uint8_t *, uint32_t, uint16_t);