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Subject[PATCH 2/4] fs/ntfs3: Fix sparse problems
From
Fixing various problems, detected by sparse.

Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
---
fs/ntfs3/attrib.c | 7 ++++---
fs/ntfs3/dir.c | 4 ++--
fs/ntfs3/frecord.c | 3 +--
fs/ntfs3/namei.c | 13 ++++++-------
4 files changed, 13 insertions(+), 14 deletions(-)

diff --git a/fs/ntfs3/attrib.c b/fs/ntfs3/attrib.c
index 63169529b52c..b2f54fab4001 100644
--- a/fs/ntfs3/attrib.c
+++ b/fs/ntfs3/attrib.c
@@ -2308,7 +2308,8 @@ int attr_insert_range(struct ntfs_inode *ni, u64 vbo, u64 bytes)

if (!attr_b->non_res) {
/* Still resident. */
- char *data = Add2Ptr(attr_b, attr_b->res.data_off);
+ char *data = Add2Ptr(attr_b,
+ le16_to_cpu(attr_b->res.data_off));

memmove(data + bytes, data, bytes);
memset(data, 0, bytes);
@@ -2400,8 +2401,8 @@ int attr_insert_range(struct ntfs_inode *ni, u64 vbo, u64 bytes)
if (vbo <= ni->i_valid)
ni->i_valid += bytes;

- attr_b->nres.data_size = le64_to_cpu(data_size + bytes);
- attr_b->nres.alloc_size = le64_to_cpu(alloc_size + bytes);
+ attr_b->nres.data_size = cpu_to_le64(data_size + bytes);
+ attr_b->nres.alloc_size = cpu_to_le64(alloc_size + bytes);

/* ni->valid may be not equal valid_size (temporary). */
if (ni->i_valid > data_size + bytes)
diff --git a/fs/ntfs3/dir.c b/fs/ntfs3/dir.c
index fb438d604040..063a6654199b 100644
--- a/fs/ntfs3/dir.c
+++ b/fs/ntfs3/dir.c
@@ -26,8 +26,8 @@ int ntfs_utf16_to_nls(struct ntfs_sb_info *sbi, const __le16 *name, u32 len,

if (!nls) {
/* UTF-16 -> UTF-8 */
- ret = utf16s_to_utf8s(name, len, UTF16_LITTLE_ENDIAN, buf,
- buf_len);
+ ret = utf16s_to_utf8s((wchar_t *)name, len, UTF16_LITTLE_ENDIAN,
+ buf, buf_len);
buf[ret] = '\0';
return ret;
}
diff --git a/fs/ntfs3/frecord.c b/fs/ntfs3/frecord.c
index 8a741706c7a5..a7aed31e7c93 100644
--- a/fs/ntfs3/frecord.c
+++ b/fs/ntfs3/frecord.c
@@ -1670,8 +1670,7 @@ struct ATTR_FILE_NAME *ni_fname_name(struct ntfs_inode *ni,
goto next;

fns = (struct le_str *)&fname->name_len;
- if (ntfs_cmp_names(uni->name, uni->len, fns->name, fns->len, NULL,
- false))
+ if (ntfs_cmp_names_cpu(uni, fns, NULL, false))
goto next;

return fname;
diff --git a/fs/ntfs3/namei.c b/fs/ntfs3/namei.c
index 315763eb05ff..ff76389475ad 100644
--- a/fs/ntfs3/namei.c
+++ b/fs/ntfs3/namei.c
@@ -427,7 +427,8 @@ static int ntfs_d_compare(const struct dentry *dentry, unsigned int len1,
unsigned int len2 = name->len;
unsigned int lm = min(len1, len2);
unsigned char c1, c2;
- struct cpu_str *uni1, *uni2;
+ struct cpu_str *uni1;
+ struct le_str *uni2;

/* First try fast implementation. */
for (;;) {
@@ -468,8 +469,9 @@ static int ntfs_d_compare(const struct dentry *dentry, unsigned int len1,

uni2 = Add2Ptr(uni1, 2048);

- ret = ntfs_nls_to_utf16(sbi, name->name, name->len, uni2, NTFS_NAME_LEN,
- UTF16_HOST_ENDIAN);
+ ret = ntfs_nls_to_utf16(sbi, name->name, name->len,
+ (struct cpu_str *)uni2, NTFS_NAME_LEN,
+ UTF16_LITTLE_ENDIAN);
if (ret < 0)
goto out;

@@ -478,10 +480,7 @@ static int ntfs_d_compare(const struct dentry *dentry, unsigned int len1,
goto out;
}

- ret = !ntfs_cmp_names(uni1->name, uni1->len, uni2->name, uni2->len,
- sbi->upcase, false)
- ? 0
- : 1;
+ ret = !ntfs_cmp_names_cpu(uni1, uni2, sbi->upcase, false) ? 0 : 1;

out:
__putname(uni1);
--
2.37.0

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