[PATCH] udf: remove redundant tests on unsigned

Roel Kluin
2009-06-22T19:12:01Z

first_block and goal are unsigned. When negative they are wrapped and caught by
the other test.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
---
diff --git a/fs/udf/balloc.c b/fs/udf/balloc.c
index e48e9a3..1e06853 100644
--- a/fs/udf/balloc.c
+++ b/fs/udf/balloc.c
@@ -238,7 +238,7 @@ static int udf_bitmap_prealloc_blocks(struct super_block *sb,

mutex_lock(&sbi->s_alloc_mutex);
part_len = sbi->s_partmaps[partition].s_partition_len;
- if (first_block < 0 || first_block >= part_len)
+ if (first_block >= part_len)
goto out;

if (first_block + block_count > part_len)
@@ -297,7 +297,7 @@ static int udf_bitmap_new_block(struct super_block *sb,
mutex_lock(&sbi->s_alloc_mutex);

repeat:
- if (goal < 0 || goal >= sbi->s_partmaps[partition].s_partition_len)
+ if (goal >= sbi->s_partmaps[partition].s_partition_len)
goal = 0;

nr_groups = bitmap->s_nr_groups;
@@ -666,8 +666,7 @@ static int udf_table_prealloc_blocks(struct super_block *sb,
int8_t etype = -1;
struct udf_inode_info *iinfo;

- if (first_block < 0 ||
- first_block >= sbi->s_partmaps[partition].s_partition_len)
+ if (first_block >= sbi->s_partmaps[partition].s_partition_len)
return 0;

iinfo = UDF_I(table);
@@ -743,7 +742,7 @@ static int udf_table_new_block(struct super_block *sb,
return newblock;

mutex_lock(&sbi->s_alloc_mutex);
- if (goal < 0 || goal >= sbi->s_partmaps[partition].s_partition_len)
+ if (goal >= sbi->s_partmaps[partition].s_partition_len)
goal = 0;

/* We search for the closest matching block to goal. If we find