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alistair23-linux
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staging: lustre: ldlm: Use !x to check for kzalloc failure 

!x is more normal for kzalloc failure in the kernel.

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

// <smpl>
@@
expression x;
statement S1, S2;
@@

x = kzalloc(...);
if (
- x == NULL
+ !x
 ) S1 else S2
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
Julia Lawall 2015-06-20 18:59:02 +02:00 committed by Greg Kroah-Hartman
parent c38ce3548e
commit 94e67761bd
3 changed files with 7 additions and 7 deletions
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4
drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
View File

@ -1528,7 +1528,7 @@ struct ldlm_lock *ldlm_lock_create(struct ldlm_namespace *ns,
if (lvb_len) {
lock->l_lvb_len = lvb_len;
lock->l_lvb_data = kzalloc(lvb_len, GFP_NOFS);
if (lock->l_lvb_data == NULL)
if (!lock->l_lvb_data)
goto out;
}
@ -1813,7 +1813,7 @@ int ldlm_run_ast_work(struct ldlm_namespace *ns, struct list_head *rpc_list,
return 0;
arg = kzalloc(sizeof(*arg), GFP_NOFS);
if (arg == NULL)
if (!arg)
return -ENOMEM;
atomic_set(&arg->restart, 0);

8
drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
View File

@ -225,7 +225,7 @@ static void ldlm_handle_cp_callback(struct ptlrpc_request *req,
void *lvb_data;
lvb_data = kzalloc(lvb_len, GFP_NOFS);
if (lvb_data == NULL) {
if (!lvb_data) {
LDLM_ERROR(lock, "No memory: %d.\n", lvb_len);
rc = -ENOMEM;
goto out;
@ -453,7 +453,7 @@ static int ldlm_bl_to_thread(struct ldlm_namespace *ns,
struct ldlm_bl_work_item *blwi;
blwi = kzalloc(sizeof(*blwi), GFP_NOFS);
if (blwi == NULL)
if (!blwi)
return -ENOMEM;
init_blwi(blwi, ns, ld, cancels, count, lock, cancel_flags);
@ -1053,7 +1053,7 @@ static int ldlm_setup(void)
return -EALREADY;
ldlm_state = kzalloc(sizeof(*ldlm_state), GFP_NOFS);
if (ldlm_state == NULL)
if (!ldlm_state)
return -ENOMEM;
ldlm_kobj = kobject_create_and_add("ldlm", lustre_kobj);
@ -1123,7 +1123,7 @@ static int ldlm_setup(void)
blp = kzalloc(sizeof(*blp), GFP_NOFS);
if (blp == NULL) {
if (!blp) {
rc = -ENOMEM;
goto out;
}

2
drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
View File

@ -1422,7 +1422,7 @@ static int ldlm_pools_thread_start(void)
return -EALREADY;
ldlm_pools_thread = kzalloc(sizeof(*ldlm_pools_thread), GFP_NOFS);
if (ldlm_pools_thread == NULL)
if (!ldlm_pools_thread)
return -ENOMEM;
init_completion(&ldlm_pools_comp);