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ia64 perfmon: fix get_unmapped_area() use there

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get_unmapped_area() returns -E... on failure, not 0.  Moreover, the
wrapper around it is completely pointless.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2012-05-30 11:55:49 -04:00
parent 63a81db132
commit 4ad310b836
1 changed files with 2 additions and 8 deletions
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10
arch/ia64/kernel/perfmon.c
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@ -604,12 +604,6 @@ pfm_unprotect_ctx_ctxsw(pfm_context_t *x, unsigned long f)
spin_unlock(&(x)->ctx_lock);
}
static inline unsigned long
pfm_get_unmapped_area(struct file *file, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags, unsigned long exec)
{
return get_unmapped_area(file, addr, len, pgoff, flags);
}
/* forward declaration */
static const struct dentry_operations pfmfs_dentry_operations;
@ -2333,8 +2327,8 @@ pfm_smpl_buffer_alloc(struct task_struct *task, struct file *filp, pfm_context_t
down_write(&task->mm->mmap_sem);
/* find some free area in address space, must have mmap sem held */
vma->vm_start = pfm_get_unmapped_area(NULL, 0, size, 0, MAP_PRIVATE|MAP_ANONYMOUS, 0);
if (vma->vm_start == 0UL) {
vma->vm_start = get_unmapped_area(NULL, 0, size, 0, MAP_PRIVATE|MAP_ANONYMOUS);
if (IS_ERR_VALUE(vma->vm_start)) {
DPRINT(("Cannot find unmapped area for size %ld\n", size));
up_write(&task->mm->mmap_sem);
goto error;