Input: fix EVIOCGNAME/JSIOCGNAME regression

Commit 3d5cb60e ("Input: simplify name handling for certain input
handles") introduced a regression for the EVIOCGNAME/JSIOCGNAME
ioctl.

Before this, patch, the platform device's name was given back to
userspace which was good to identify devices. After this patch, the
device is ("event%d", minor) which is not descriptive at all.

This fixes the behaviour by taking dev->name.

Reported-by: Sven Neumann <s.neumann@raumfeld.com>
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Reviewed-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 114efd8..1148140 100644 (file)
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -608,8 +608,7 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
                                                    p, compat_mode);
 
                        if (_IOC_NR(cmd) == _IOC_NR(EVIOCGNAME(0)))
-                               return str_to_user(dev_name(&evdev->dev),
-                                                  _IOC_SIZE(cmd), p);
+                               return str_to_user(dev->name, _IOC_SIZE(cmd), p);
 
                        if (_IOC_NR(cmd) == _IOC_NR(EVIOCGPHYS(0)))
                                return str_to_user(dev->phys, _IOC_SIZE(cmd), p);

diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c
index 0e12f89..4cfd084 100644 (file)
--- a/drivers/input/joydev.c
+++ b/drivers/input/joydev.c
@@ -536,7 +536,7 @@ static int joydev_ioctl_common(struct joydev *joydev,
        default:
                if ((cmd & ~IOCSIZE_MASK) == JSIOCGNAME(0)) {
                        int len;
-                       const char *name = dev_name(&dev->dev);
+                       const char *name = dev->name;
 
                        if (!name)
                                return 0;