From: Vasiliy Kulikov Date: Mon, 17 Jan 2011 10:08:45 +0000 (+0300) Subject: HID: hid-roccat-koneplus: potential NULL dereference X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=dacfecdbf3a0a5072984ff8b3c224a48c8461008;p=deliverable%2Flinux.git HID: hid-roccat-koneplus: potential NULL dereference kmalloc() may fail, if so return -ENOMEM. Also koneplus_init_koneplus_device_struct() should check return code of koneplus_get_startup_profile() and propagate its return code. Signed-off-by: Vasiliy Kulikov Signed-off-by: Jiri Kosina --- diff --git a/drivers/hid/hid-roccat-koneplus.c b/drivers/hid/hid-roccat-koneplus.c index 1608c8d1efd6..591a97cf6b65 100644 --- a/drivers/hid/hid-roccat-koneplus.c +++ b/drivers/hid/hid-roccat-koneplus.c @@ -220,6 +220,8 @@ static int koneplus_get_startup_profile(struct usb_device *usb_dev) int retval; buf = kmalloc(sizeof(struct koneplus_startup_profile), GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; retval = koneplus_receive(usb_dev, KONEPLUS_USB_COMMAND_STARTUP_PROFILE, buf, sizeof(struct koneplus_startup_profile)); @@ -614,6 +616,8 @@ static int koneplus_init_koneplus_device_struct(struct usb_device *usb_dev, mutex_init(&koneplus->koneplus_lock); koneplus->startup_profile = koneplus_get_startup_profile(usb_dev); + if (koneplus->startup_profile < 0) + return koneplus->startup_profile; msleep(wait); retval = koneplus_get_info(usb_dev, &koneplus->info);