[v4,1/2] HID: Add Support for Setting and Getting Feature Reports from hidraw

Commit Message

Antonio Ospite Sept. 28, 2010, 1:30 p.m. UTC

None

Patch

diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index 7df1310..3c040c6 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -322,6 +322,10 @@  static long hidraw_ioctl(struct file *file, unsigned int cmd,

        mutex_lock(&minors_lock);
        dev = hidraw_table[minor];
+       if (!dev) {
+               ret = -ENODEV;
+               goto out;
+       }

        switch (cmd) {
                case HIDIOCGRDESCSIZE:
@@ -412,6 +416,7 @@  static long hidraw_ioctl(struct file *file, unsigned int cmd,

                ret = -ENOTTY;
        }
+out:
        mutex_unlock(&minors_lock);
        return ret;
 }