From 573da4224e8c3800e613d715e909c3179a7e3cb2 Mon Sep 17 00:00:00 2001 From: Cyrill Gorcunov Date: Mon, 28 Apr 2008 23:15:04 +0400 Subject: [PATCH] x86: DS cleanup - dont treat 0 as NULL Signed-off-by: Cyrill Gorcunov Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- arch/x86/kernel/ds.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/arch/x86/kernel/ds.c b/arch/x86/kernel/ds.c index 5b32b6d062b..24a323c9599 100644 --- a/arch/x86/kernel/ds.c +++ b/arch/x86/kernel/ds.c @@ -238,12 +238,12 @@ static inline struct ds_context *ds_alloc_context(struct task_struct *task) context = kzalloc(sizeof(*context), GFP_KERNEL); if (!context) - return 0; + return NULL; context->ds = kzalloc(ds_cfg.sizeof_ds, GFP_KERNEL); if (!context->ds) { kfree(context); - return 0; + return NULL; } *p_context = context; @@ -279,7 +279,7 @@ static inline void ds_put_context(struct ds_context *context) if (--context->count) goto out; - *(context->this) = 0; + *(context->this) = NULL; if (context->task) clear_tsk_thread_flag(context->task, TIF_DS_AREA_MSR); @@ -341,16 +341,16 @@ static inline void *ds_allocate_buffer(size_t size, unsigned int *pages) rlim = current->signal->rlim[RLIMIT_AS].rlim_cur >> PAGE_SHIFT; vm = current->mm->total_vm + pgsz; if (rlim < vm) - return 0; + return NULL; rlim = current->signal->rlim[RLIMIT_MEMLOCK].rlim_cur >> PAGE_SHIFT; vm = current->mm->locked_vm + pgsz; if (rlim < vm) - return 0; + return NULL; buffer = kzalloc(size, GFP_KERNEL); if (!buffer) - return 0; + return NULL; current->mm->total_vm += pgsz; current->mm->locked_vm += pgsz; @@ -395,7 +395,7 @@ static int ds_request(struct task_struct *task, void *base, size_t size, if (context->owner[qual] == current) goto out_unlock; error = -EPERM; - if (context->owner[qual] != 0) + if (context->owner[qual] != NULL) goto out_unlock; context->owner[qual] = current; @@ -445,7 +445,7 @@ static int ds_request(struct task_struct *task, void *base, size_t size, return error; out_release: - context->owner[qual] = 0; + context->owner[qual] = NULL; ds_put_context(context); return error; @@ -825,7 +825,7 @@ void __cpuinit ds_init_intel(struct cpuinfo_x86 *c) ds_configure(&ds_cfg_var); break; case 0xF: /* Core2 */ - case 0x1C: /* Atom */ + case 0x1C: /* Atom */ ds_configure(&ds_cfg_64); break; default: -- 2.39.5