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path: root/drivers/input/input.c
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Diffstat (limited to 'drivers/input/input.c')
-rw-r--r--drivers/input/input.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/input/input.c b/drivers/input/input.c
index 6365c1958264..3304aaaffe87 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -480,11 +480,19 @@ EXPORT_SYMBOL(input_inject_event);
*/
void input_alloc_absinfo(struct input_dev *dev)
{
- if (!dev->absinfo)
- dev->absinfo = kcalloc(ABS_CNT, sizeof(*dev->absinfo),
- GFP_KERNEL);
+ if (dev->absinfo)
+ return;
- WARN(!dev->absinfo, "%s(): kcalloc() failed?\n", __func__);
+ dev->absinfo = kcalloc(ABS_CNT, sizeof(*dev->absinfo), GFP_KERNEL);
+ if (!dev->absinfo) {
+ dev_err(dev->dev.parent ?: &dev->dev,
+ "%s: unable to allocate memory\n", __func__);
+ /*
+ * We will handle this allocation failure in
+ * input_register_device() when we refuse to register input
+ * device with ABS bits but without absinfo.
+ */
+ }
}
EXPORT_SYMBOL(input_alloc_absinfo);