* Patch "video: udlfb: Fix read EDID timeout" has been added to the 4.9-stable tree
@ 2017-12-18 13:24 gregkh
0 siblings, 0 replies; only message in thread
From: gregkh @ 2017-12-18 13:24 UTC (permalink / raw)
To: ladis, alexander.levin, b.zolnierkie, bernie, gregkh
Cc: stable, stable-commits
This is a note to let you know that I've just added the patch titled
video: udlfb: Fix read EDID timeout
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
video-udlfb-fix-read-edid-timeout.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From foo@baz Mon Dec 18 14:12:34 CET 2017
From: Ladislav Michl <ladis@linux-mips.org>
Date: Thu, 9 Nov 2017 18:09:30 +0100
Subject: video: udlfb: Fix read EDID timeout
From: Ladislav Michl <ladis@linux-mips.org>
[ Upstream commit c98769475575c8a585f5b3952f4b5f90266f699b ]
While usb_control_msg function expects timeout in miliseconds, a value
of HZ is used. Replace it with USB_CTRL_GET_TIMEOUT and also fix error
message which looks like:
udlfb: Read EDID byte 78 failed err ffffff92
as error is either negative errno or number of bytes transferred use %d
format specifier.
Returned EDID is in second byte, so return error when less than two bytes
are received.
Fixes: 18dffdf8913a ("staging: udlfb: enhance EDID and mode handling support")
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Cc: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/video/fbdev/udlfb.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
--- a/drivers/video/fbdev/udlfb.c
+++ b/drivers/video/fbdev/udlfb.c
@@ -769,11 +769,11 @@ static int dlfb_get_edid(struct dlfb_dat
for (i = 0; i < len; i++) {
ret = usb_control_msg(dev->udev,
- usb_rcvctrlpipe(dev->udev, 0), (0x02),
- (0x80 | (0x02 << 5)), i << 8, 0xA1, rbuf, 2,
- HZ);
- if (ret < 1) {
- pr_err("Read EDID byte %d failed err %x\n", i, ret);
+ usb_rcvctrlpipe(dev->udev, 0), 0x02,
+ (0x80 | (0x02 << 5)), i << 8, 0xA1,
+ rbuf, 2, USB_CTRL_GET_TIMEOUT);
+ if (ret < 2) {
+ pr_err("Read EDID byte %d failed: %d\n", i, ret);
i--;
break;
}
Patches currently in stable-queue which might be from ladis@linux-mips.org are
queue-4.9/video-udlfb-fix-read-edid-timeout.patch
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2017-12-18 13:26 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-12-18 13:24 Patch "video: udlfb: Fix read EDID timeout" has been added to the 4.9-stable tree gregkh
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.