This is a note to let you know that I've just added the patch titled media: rockchip: rkisp1: use device name for debugfs subdir name to the 5.15-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: media-rockchip-rkisp1-use-device-name-for-debugfs-su.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 3cefddc768c7cdcc901640fa810121e14de788bf Author: Mikhail Rudenko <mike.rudenko@xxxxxxxxx> Date: Sun Oct 10 19:54:57 2021 +0200 media: rockchip: rkisp1: use device name for debugfs subdir name [ Upstream commit c2611e479f5d9b05108270e1ab423955486b4457 ] While testing Rockchip RK3399 with both ISPs enabled, a dmesg error was observed: ``` [ 15.559141] debugfs: Directory 'rkisp1' with parent '/' already present! ``` Fix it by using the device name for the debugfs subdirectory name instead of the driver name, thus preventing name collision. Link: https://lore.kernel.org/linux-media/20211010175457.438627-1-mike.rudenko@xxxxxxxxx Signed-off-by: Mikhail Rudenko <mike.rudenko@xxxxxxxxx> Reviewed-by: Ezequiel Garcia <ezequiel@xxxxxxxxxxxxxxxxxxxx> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c index 7474150b94ed3..560f928c37520 100644 --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c @@ -426,7 +426,7 @@ static void rkisp1_debug_init(struct rkisp1_device *rkisp1) { struct rkisp1_debug *debug = &rkisp1->debug; - debug->debugfs_dir = debugfs_create_dir(RKISP1_DRIVER_NAME, NULL); + debug->debugfs_dir = debugfs_create_dir(dev_name(rkisp1->dev), NULL); debugfs_create_ulong("data_loss", 0444, debug->debugfs_dir, &debug->data_loss); debugfs_create_ulong("outform_size_err", 0444, debug->debugfs_dir,