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staging: lustre: obdclass: obd_mount: remove unneeded null test before free

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Kfree can cope with a null argument, so drop null tests.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@ expression ptr; @@

- if (ptr != NULL)
  kfree(ptr);

@@ expression ptr; @@

- if (ptr != NULL) {
  kfree(ptr);
  ptr = NULL;
- }
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Julia Lawall 2015-05-01 21:37:52 +02:00 committed by Greg Kroah-Hartman
parent 32a3fab2ed
commit 7713e5f5e5
1 changed files with 15 additions and 30 deletions
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45
drivers/staging/lustre/lustre/obdclass/obd_mount.c
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@ -464,12 +464,9 @@ out:
out_free:
mutex_unlock(&mgc_start_lock);
if (data)
kfree(data);
if (mgcname)
kfree(mgcname);
if (niduuid)
kfree(niduuid);
kfree(data);
kfree(mgcname);
kfree(niduuid);
return rc;
}
@ -538,8 +535,7 @@ static int lustre_stop_mgc(struct super_block *sb)
niduuid, rc);
}
out:
if (niduuid)
kfree(niduuid);
kfree(niduuid);
/* class_import_put will get rid of the additional connections */
mutex_unlock(&mgc_start_lock);
@ -585,22 +581,15 @@ static int lustre_free_lsi(struct super_block *sb)
LASSERT(atomic_read(&lsi->lsi_mounts) == 0);
if (lsi->lsi_lmd != NULL) {
if (lsi->lsi_lmd->lmd_dev != NULL)
kfree(lsi->lsi_lmd->lmd_dev);
if (lsi->lsi_lmd->lmd_profile != NULL)
kfree(lsi->lsi_lmd->lmd_profile);
if (lsi->lsi_lmd->lmd_mgssec != NULL)
kfree(lsi->lsi_lmd->lmd_mgssec);
if (lsi->lsi_lmd->lmd_opts != NULL)
kfree(lsi->lsi_lmd->lmd_opts);
kfree(lsi->lsi_lmd->lmd_dev);
kfree(lsi->lsi_lmd->lmd_profile);
kfree(lsi->lsi_lmd->lmd_mgssec);
kfree(lsi->lsi_lmd->lmd_opts);
if (lsi->lsi_lmd->lmd_exclude_count)
kfree(lsi->lsi_lmd->lmd_exclude);
if (lsi->lsi_lmd->lmd_mgs != NULL)
kfree(lsi->lsi_lmd->lmd_mgs);
if (lsi->lsi_lmd->lmd_osd_type != NULL)
kfree(lsi->lsi_lmd->lmd_osd_type);
if (lsi->lsi_lmd->lmd_params != NULL)
kfree(lsi->lsi_lmd->lmd_params);
kfree(lsi->lsi_lmd->lmd_mgs);
kfree(lsi->lsi_lmd->lmd_osd_type);
kfree(lsi->lsi_lmd->lmd_params);
kfree(lsi->lsi_lmd);
}
@ -886,10 +875,8 @@ static int lmd_parse_mgssec(struct lustre_mount_data *lmd, char *ptr)
char *tail;
int length;
if (lmd->lmd_mgssec != NULL) {
kfree(lmd->lmd_mgssec);
lmd->lmd_mgssec = NULL;
}
kfree(lmd->lmd_mgssec);
lmd->lmd_mgssec = NULL;
tail = strchr(ptr, ',');
if (tail == NULL)
@ -914,10 +901,8 @@ static int lmd_parse_string(char **handle, char *ptr)
if ((handle == NULL) || (ptr == NULL))
return -EINVAL;
if (*handle != NULL) {
kfree(*handle);
*handle = NULL;
}
kfree(*handle);
*handle = NULL;
tail = strchr(ptr, ',');
if (tail == NULL)