[PATCH] hid: hidraw_connect memleak fix

[Mariusz Kozlowski]

It looks like hidraw_connect() is leaking memory in case of failure.
Also it should return -ENOMEM when kzalloc fails.

Signed-off-by: Mariusz Kozlowski <[EMAIL PROTECTED]>

 drivers/hid/hidraw.c |   14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

--- linux-2.6.23-rc8-mm1-a/drivers/hid/hidraw.c 2007-09-26 12:07:37.000000000 
+0200
+++ linux-2.6.23-rc8-mm1-b/drivers/hid/hidraw.c 2007-09-26 14:36:08.000000000 
+0200
@@ -282,7 +282,7 @@ EXPORT_SYMBOL_GPL(hidraw_report_event);

 int hidraw_connect(struct hid_device *hid)
 {
-       int minor, result = -EINVAL;
+       int minor, result;
        struct hidraw *dev;

        /* TODO currently we accept any HID device. This should later
@@ -290,8 +290,11 @@ int hidraw_connect(struct hid_device *hi
         * non-input applications
         */

-       if (!(dev = kzalloc(sizeof(struct hidraw), GFP_KERNEL)))
-               return -1;
+       dev = kzalloc(sizeof(struct hidraw), GFP_KERNEL);
+       if (!dev)
+               return -ENOMEM;
+
+       result = -EINVAL;

        spin_lock(&minors_lock);

@@ -305,8 +308,10 @@ int hidraw_connect(struct hid_device *hi

        spin_unlock(&minors_lock);

-       if (result)
+       if (result) {
+               kfree(dev);
                goto out;
+       }

        dev->dev = device_create(hidraw_class, NULL, MKDEV(hidraw_major, minor),
                                "%s%d", "hidraw", minor);
@@ -316,6 +321,7 @@ int hidraw_connect(struct hid_device *hi
                hidraw_table[minor] = NULL;
                spin_unlock(&minors_lock);
                result = PTR_ERR(dev->dev);
+               kfree(dev);
                goto out;
        }