From d1ff65226c5afe55f9af38a439058f41b71e114f Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Tue, 15 Sep 2009 11:59:49 +0200 Subject: HID: fix non-atomic allocation in hid_input_report 'interrupt' variable can't be used to safely determine whether we are running in atomic context or not, as we might be called from during control transfer completion through hid_ctrl() in atomic context with interrupt == 0. Reported-by: Jens Axboe Signed-off-by: Jiri Kosina --- drivers/hid/hid-core.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/hid/hid-core.c') diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 342b7d36d7b..ca9bb26c207 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1089,8 +1089,7 @@ int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int i return -1; } - buf = kmalloc(sizeof(char) * HID_DEBUG_BUFSIZE, - interrupt ? GFP_ATOMIC : GFP_KERNEL); + buf = kmalloc(sizeof(char) * HID_DEBUG_BUFSIZE, GFP_ATOMIC); if (!buf) { report = hid_get_report(report_enum, data); -- cgit v1.2.3 From c4c259bcc27c4242b012106afdba183622b1735f Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Tue, 15 Sep 2009 16:27:45 +0200 Subject: HID: consolidate connect and disconnect into core code HID core registers input, hidraw and hiddev devices, but leaves unregistering it up to the individual driver, which is not really nice. Let's move all the logic to the core. Reported-by: Marcel Holtmann Reported-by: Brian Rogers Acked-by: Marcel Holtmann Signed-off-by: Jiri Kosina --- drivers/hid/hid-core.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers/hid/hid-core.c') diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index ca9bb26c207..be34d32906b 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1237,6 +1237,17 @@ int hid_connect(struct hid_device *hdev, unsigned int connect_mask) } EXPORT_SYMBOL_GPL(hid_connect); +void hid_disconnect(struct hid_device *hdev) +{ + if (hdev->claimed & HID_CLAIMED_INPUT) + hidinput_disconnect(hdev); + if (hdev->claimed & HID_CLAIMED_HIDDEV) + hdev->hiddev_disconnect(hdev); + if (hdev->claimed & HID_CLAIMED_HIDRAW) + hidraw_disconnect(hdev); +} +EXPORT_SYMBOL_GPL(hid_disconnect); + /* a list of devices for which there is a specialized driver on HID bus */ static const struct hid_device_id hid_blacklist[] = { { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) }, -- cgit v1.2.3