| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Fri, 19 Aug 2011 23:33:56 +0200 (CEST)
From: Jesper Juhl <jj@...osbits.net>
To: linux-kernel@...r.kernel.org
cc: linux-ntfs-dev@...ts.sourceforge.net,
Anton Altaparmakov <anton@...era.com>
Subject: [PATCH 3/3] Remove no longer needed NULL checks before calls to
ntfs_free()
From: Jesper Juhl <jj@...osbits.net>
ntfs_free() can deal with NULL pointers, it's redundant to check first.
Signed-off-by: Jesper Juhl <jj@...osbits.net>
---
fs/ntfs/inode.c | 18 ++++++------------
fs/ntfs/logfile.c | 3 +--
fs/ntfs/runlist.c | 3 +--
fs/ntfs/super.c | 36 ++++++++++++------------------------
4 files changed, 20 insertions(+), 40 deletions(-)
diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c
index 1371487..bcc298f 100644
--- a/fs/ntfs/inode.c
+++ b/fs/ntfs/inode.c
@@ -2197,22 +2197,16 @@ static void __ntfs_clear_inode(ntfs_inode *ni)
{
/* Free all alocated memory. */
down_write(&ni->runlist.lock);
- if (ni->runlist.rl) {
- ntfs_free(ni->runlist.rl);
- ni->runlist.rl = NULL;
- }
+ ntfs_free(ni->runlist.rl);
+ ni->runlist.rl = NULL;
up_write(&ni->runlist.lock);
- if (ni->attr_list) {
- ntfs_free(ni->attr_list);
- ni->attr_list = NULL;
- }
+ ntfs_free(ni->attr_list);
+ ni->attr_list = NULL;
down_write(&ni->attr_list_rl.lock);
- if (ni->attr_list_rl.rl) {
- ntfs_free(ni->attr_list_rl.rl);
- ni->attr_list_rl.rl = NULL;
- }
+ ntfs_free(ni->attr_list_rl.rl);
+ ni->attr_list_rl.rl = NULL;
up_write(&ni->attr_list_rl.lock);
if (ni->name_len && ni->name != I30) {
diff --git a/fs/ntfs/logfile.c b/fs/ntfs/logfile.c
index c71de29..14a9e09 100644
--- a/fs/ntfs/logfile.c
+++ b/fs/ntfs/logfile.c
@@ -651,8 +651,7 @@ is_empty:
ntfs_debug("Done.");
return true;
err_out:
- if (rstr1_ph)
- ntfs_free(rstr1_ph);
+ ntfs_free(rstr1_ph);
return false;
}
diff --git a/fs/ntfs/runlist.c b/fs/ntfs/runlist.c
index eac7d67..98aaba9 100644
--- a/fs/ntfs/runlist.c
+++ b/fs/ntfs/runlist.c
@@ -1509,8 +1509,7 @@ int ntfs_rl_truncate_nolock(const ntfs_volume *vol, runlist *const runlist,
if (!new_length) {
ntfs_debug("Freeing runlist.");
runlist->rl = NULL;
- if (rl)
- ntfs_free(rl);
+ ntfs_free(rl);
return 0;
}
if (unlikely(!rl)) {
diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c
index b52706d..03e1bf2 100644
--- a/fs/ntfs/super.c
+++ b/fs/ntfs/super.c
@@ -2206,10 +2206,8 @@ iput_lcnbmp_err_out:
iput(vol->lcnbmp_ino);
iput_attrdef_err_out:
vol->attrdef_size = 0;
- if (vol->attrdef) {
- ntfs_free(vol->attrdef);
- vol->attrdef = NULL;
- }
+ ntfs_free(vol->attrdef);
+ vol->attrdef = NULL;
#ifdef NTFS_RW
iput_upcase_err_out:
#endif /* NTFS_RW */
@@ -2220,10 +2218,8 @@ iput_upcase_err_out:
vol->upcase = NULL;
}
mutex_unlock(&ntfs_lock);
- if (vol->upcase) {
- ntfs_free(vol->upcase);
- vol->upcase = NULL;
- }
+ ntfs_free(vol->upcase);
+ vol->upcase = NULL;
iput_mftbmp_err_out:
iput(vol->mftbmp_ino);
iput_mirr_err_out:
@@ -2389,10 +2385,8 @@ static void ntfs_put_super(struct super_block *sb)
/* Throw away the table of attribute definitions. */
vol->attrdef_size = 0;
- if (vol->attrdef) {
- ntfs_free(vol->attrdef);
- vol->attrdef = NULL;
- }
+ ntfs_free(vol->attrdef);
+ vol->attrdef = NULL;
vol->upcase_len = 0;
/*
* Destroy the global default upcase table if necessary. Also decrease
@@ -2410,10 +2404,8 @@ static void ntfs_put_super(struct super_block *sb)
if (vol->cluster_size <= 4096 && !--ntfs_nr_compression_users)
free_compression_buffers();
mutex_unlock(&ntfs_lock);
- if (vol->upcase) {
- ntfs_free(vol->upcase);
- vol->upcase = NULL;
- }
+ ntfs_free(vol->upcase);
+ vol->upcase = NULL;
unload_nls(vol->nls_map);
@@ -2983,10 +2975,8 @@ static int ntfs_fill_super(struct super_block *sb, void *opt, const int silent)
#endif /* NTFS_RW */
/* Throw away the table of attribute definitions. */
vol->attrdef_size = 0;
- if (vol->attrdef) {
- ntfs_free(vol->attrdef);
- vol->attrdef = NULL;
- }
+ ntfs_free(vol->attrdef);
+ vol->attrdef = NULL;
vol->upcase_len = 0;
mutex_lock(&ntfs_lock);
if (vol->upcase == default_upcase) {
@@ -2994,10 +2984,8 @@ static int ntfs_fill_super(struct super_block *sb, void *opt, const int silent)
vol->upcase = NULL;
}
mutex_unlock(&ntfs_lock);
- if (vol->upcase) {
- ntfs_free(vol->upcase);
- vol->upcase = NULL;
- }
+ ntfs_free(vol->upcase);
+ vol->upcase = NULL;
if (vol->nls_map) {
unload_nls(vol->nls_map);
vol->nls_map = NULL;
--
1.7.6
--
Jesper Juhl <jj@...osbits.net> http://www.chaosbits.net/
Don't top-post http://www.catb.org/jargon/html/T/top-post.html
Plain text mails only, please.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists