diff options
Diffstat (limited to 'drivers/hwtracing')
| -rw-r--r-- | drivers/hwtracing/intel_th/core.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/hwtracing/intel_th/core.c b/drivers/hwtracing/intel_th/core.c index c577b94ee606..8c221e1ed12d 100644 --- a/drivers/hwtracing/intel_th/core.c +++ b/drivers/hwtracing/intel_th/core.c @@ -607,6 +607,9 @@ intel_th_subdevice_alloc(struct intel_th *th, */ if (!res[r].end && res[r].flags == IORESOURCE_MEM) { bar = res[r].start; + err = -ENODEV; + if (bar >= th->num_resources) + goto fail_put_device; res[r].start = 0; res[r].end = resource_size(&devres[bar]) - 1; } @@ -749,8 +752,13 @@ static int intel_th_populate(struct intel_th *th) thdev = intel_th_subdevice_alloc(th, subdev); /* note: caller should free subdevices from th::thdev[] */ - if (IS_ERR(thdev)) + if (IS_ERR(thdev)) { + /* ENODEV for individual subdevices is allowed */ + if (PTR_ERR(thdev) == -ENODEV) + continue; + return PTR_ERR(thdev); + } th->thdev[th->num_thdevs++] = thdev; } @@ -813,9 +821,6 @@ intel_th_alloc(struct device *dev, struct intel_th_drvdata *drvdata, struct intel_th *th; int err, r; - if (ndevres < TH_MMIO_END) - return ERR_PTR(-EINVAL); - th = kzalloc(sizeof(*th), GFP_KERNEL); if (!th) return ERR_PTR(-ENOMEM); |