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path: root/drivers/media/IR/ir-sysfs.c
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Diffstat (limited to 'drivers/media/IR/ir-sysfs.c')
-rw-r--r--drivers/media/IR/ir-sysfs.c37
1 files changed, 27 insertions, 10 deletions
diff --git a/drivers/media/IR/ir-sysfs.c b/drivers/media/IR/ir-sysfs.c
index 46d42467f9b4..38423a8da871 100644
--- a/drivers/media/IR/ir-sysfs.c
+++ b/drivers/media/IR/ir-sysfs.c
@@ -43,6 +43,7 @@ static struct {
{ IR_TYPE_RC6, "rc-6" },
{ IR_TYPE_JVC, "jvc" },
{ IR_TYPE_SONY, "sony" },
+ { IR_TYPE_RC5_SZ, "rc-5-sz" },
{ IR_TYPE_LIRC, "lirc" },
};
@@ -67,6 +68,10 @@ static ssize_t show_protocols(struct device *d,
char *tmp = buf;
int i;
+ /* Device is being removed */
+ if (!ir_dev)
+ return -EINVAL;
+
if (ir_dev->props && ir_dev->props->driver_type == RC_DRIVER_SCANCODE) {
enabled = ir_dev->rc_tab.ir_type;
allowed = ir_dev->props->allowed_protos;
@@ -122,6 +127,10 @@ static ssize_t store_protocols(struct device *d,
int rc, i, count = 0;
unsigned long flags;
+ /* Device is being removed */
+ if (!ir_dev)
+ return -EINVAL;
+
if (ir_dev->props && ir_dev->props->driver_type == RC_DRIVER_SCANCODE)
type = ir_dev->rc_tab.ir_type;
else if (ir_dev->raw)
@@ -256,8 +265,6 @@ static struct device_type rc_dev_type = {
*/
int ir_register_class(struct input_dev *input_dev)
{
- int rc;
- const char *path;
struct ir_input_dev *ir_dev = input_get_drvdata(input_dev);
int devno = find_first_zero_bit(&ir_core_dev_number,
IRRCV_NUM_DEVICES);
@@ -266,17 +273,28 @@ int ir_register_class(struct input_dev *input_dev)
return devno;
ir_dev->dev.type = &rc_dev_type;
+ ir_dev->devno = devno;
ir_dev->dev.class = &ir_input_class;
ir_dev->dev.parent = input_dev->dev.parent;
+ input_dev->dev.parent = &ir_dev->dev;
dev_set_name(&ir_dev->dev, "rc%d", devno);
dev_set_drvdata(&ir_dev->dev, ir_dev);
- rc = device_register(&ir_dev->dev);
- if (rc)
- return rc;
+ return device_register(&ir_dev->dev);
+};
+
+/**
+ * ir_register_input - registers ir input device with input subsystem
+ * @input_dev: the struct input_dev descriptor of the device
+ */
+
+int ir_register_input(struct input_dev *input_dev)
+{
+ struct ir_input_dev *ir_dev = input_get_drvdata(input_dev);
+ int rc;
+ const char *path;
- input_dev->dev.parent = &ir_dev->dev;
rc = input_register_device(input_dev);
if (rc < 0) {
device_del(&ir_dev->dev);
@@ -292,11 +310,9 @@ int ir_register_class(struct input_dev *input_dev)
path ? path : "N/A");
kfree(path);
- ir_dev->devno = devno;
- set_bit(devno, &ir_core_dev_number);
-
+ set_bit(ir_dev->devno, &ir_core_dev_number);
return 0;
-};
+}
/**
* ir_unregister_class() - removes the sysfs for sysfs for
@@ -309,6 +325,7 @@ void ir_unregister_class(struct input_dev *input_dev)
{
struct ir_input_dev *ir_dev = input_get_drvdata(input_dev);
+ input_set_drvdata(input_dev, NULL);
clear_bit(ir_dev->devno, &ir_core_dev_number);
input_unregister_device(input_dev);
device_del(&ir_dev->dev);