From: Sean Young Date: Thu, 10 Nov 2016 16:44:49 +0000 (+0100) Subject: dib0700: fix nec repeat handling X-Git-Tag: v3.12.68~74 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=462a6dac43f454a1baf4b381893ff7db2741beb8;p=thirdparty%2Fkernel%2Fstable.git dib0700: fix nec repeat handling commit ba13e98f2cebd55a3744c5ffaa08f9dca73bf521 upstream. When receiving a nec repeat, ensure the correct scancode is repeated rather than a random value from the stack. This removes the need for the bogus uninitialized_var() and also fixes the warnings: drivers/media/usb/dvb-usb/dib0700_core.c: In function ‘dib0700_rc_urb_completion’: drivers/media/usb/dvb-usb/dib0700_core.c:679: warning: ‘protocol’ may be used uninitialized in this function [sean addon: So after writing the patch and submitting it, I've bought the hardware on ebay. Without this patch you get random scancodes on nec repeats, which the patch indeed fixes.] Signed-off-by: Sean Young Tested-by: Sean Young Signed-off-by: Arnd Bergmann Signed-off-by: Linus Torvalds Signed-off-by: Jiri Slaby --- diff --git a/drivers/media/usb/dvb-usb/dib0700_core.c b/drivers/media/usb/dvb-usb/dib0700_core.c index bf2a908d74cf3..452ef7bc630c6 100644 --- a/drivers/media/usb/dvb-usb/dib0700_core.c +++ b/drivers/media/usb/dvb-usb/dib0700_core.c @@ -674,7 +674,7 @@ static void dib0700_rc_urb_completion(struct urb *purb) { struct dvb_usb_device *d = purb->context; struct dib0700_rc_response *poll_reply; - u32 uninitialized_var(keycode); + u32 keycode; u8 toggle; deb_info("%s()\n", __func__); @@ -713,7 +713,8 @@ static void dib0700_rc_urb_completion(struct urb *purb) if ((poll_reply->system == 0x00) && (poll_reply->data == 0x00) && (poll_reply->not_data == 0xff)) { poll_reply->data_state = 2; - break; + rc_repeat(d->rc_dev); + goto resubmit; } if ((poll_reply->system ^ poll_reply->not_system) != 0xff) {