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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2011-01-28 23:33:29 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-31 13:04:11 +1000
commit54e74b87e2a9941c6fa82189f270b47cceeba714 (patch)
tree4a41222df8d4f525a9686947d10884642eb95211
parent1ca05b7fc2672ea870bd58f45dc8d36d2b980f94 (diff)
downloadlinux-54e74b87e2a9941c6fa82189f270b47cceeba714.tar.bz2
Input: rc-keymap - return KEY_RESERVED for unknown mappings
Do not respond with -EINVAL to EVIOCGKEYCODE for not-yet-mapped scancodes, but rather return KEY_RESERVED. This fixes breakage with Ubuntu's input-kbd utility that stopped returning full keymaps for remote controls. Tested-by: Mauro Carvalho Chehab <mchehab@redhat.com> Tested-by: Mark Lord <kernel@teksavvy.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/media/rc/rc-main.c28
1 files changed, 17 insertions, 11 deletions
diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
index 72be8a02118c..512a2f4ada0e 100644
--- a/drivers/media/rc/rc-main.c
+++ b/drivers/media/rc/rc-main.c
@@ -458,21 +458,27 @@ static int ir_getkeycode(struct input_dev *idev,
index = ir_lookup_by_scancode(rc_map, scancode);
}
- if (index >= rc_map->len) {
- if (!(ke->flags & INPUT_KEYMAP_BY_INDEX))
- IR_dprintk(1, "unknown key for scancode 0x%04x\n",
- scancode);
+ if (index < rc_map->len) {
+ entry = &rc_map->scan[index];
+
+ ke->index = index;
+ ke->keycode = entry->keycode;
+ ke->len = sizeof(entry->scancode);
+ memcpy(ke->scancode, &entry->scancode, sizeof(entry->scancode));
+
+ } else if (!(ke->flags & INPUT_KEYMAP_BY_INDEX)) {
+ /*
+ * We do not really know the valid range of scancodes
+ * so let's respond with KEY_RESERVED to anything we
+ * do not have mapping for [yet].
+ */
+ ke->index = index;
+ ke->keycode = KEY_RESERVED;
+ } else {
retval = -EINVAL;
goto out;
}
- entry = &rc_map->scan[index];
-
- ke->index = index;
- ke->keycode = entry->keycode;
- ke->len = sizeof(entry->scancode);
- memcpy(ke->scancode, &entry->scancode, sizeof(entry->scancode));
-
retval = 0;
out: