[PATCH] hid: hid-roccat-koneplus: potential NULL dereference
From: Vasiliy Kulikov <hidden>
Date: 2011-01-17 10:08:53
Also in:
kernel-janitors, lkml
Subsystem:
hid core layer, roccat drivers, the rest · Maintainers:
Jiri Kosina, Benjamin Tissoires, Stefan Achatz, Linus Torvalds
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 <redacted> --- Compile tested only. drivers/hid/hid-roccat-koneplus.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/hid/hid-roccat-koneplus.c b/drivers/hid/hid-roccat-koneplus.c
index 1608c8d..591a97c 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);
--
1.7.0.4