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drm/nouveau/bar: behave better if ioremap failed

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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2014-08-11 11:52:44 +10:00
parent e715396ae3
commit e7d96929a7
1 changed files with 11 additions and 3 deletions
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14
drivers/gpu/drm/nouveau/core/subdev/bar/base.c
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@ -99,8 +99,13 @@ nouveau_bar_alloc(struct nouveau_bar *bar, struct nouveau_object *parent,
struct nouveau_mem *mem, struct nouveau_object **pobject)
{
struct nouveau_object *engine = nv_object(bar);
return nouveau_object_ctor(parent, engine, &nouveau_barobj_oclass,
mem, 0, pobject);
int ret = -ENOMEM;
if (bar->iomem) {
ret = nouveau_object_ctor(parent, engine,
&nouveau_barobj_oclass,
mem, 0, pobject);
}
return ret;
}
int
@ -118,9 +123,12 @@ nouveau_bar_create_(struct nouveau_object *parent,
if (ret)
return ret;
if (nv_device_resource_len(device, 3) != 0)
if (nv_device_resource_len(device, 3) != 0) {
bar->iomem = ioremap(nv_device_resource_start(device, 3),
nv_device_resource_len(device, 3));
if (!bar->iomem)
nv_warn(bar, "PRAMIN ioremap failed\n");
}
return 0;
}