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usb: ulpi: Fix debugfs directory leak 

commit 3caf2b2ad7 upstream.

The ULPI per-device debugfs root is named after the ulpi device's
parent, but ulpi_unregister_interface tries to remove a debugfs
directory named after the ulpi device itself. This results in the
directory sticking around and preventing subsequent (deferred) probes
from succeeding. Change the directory name to match the ulpi device.

Fixes: bd0a0a024f ("usb: ulpi: Add debugfs support")
Cc: stable@vger.kernel.org
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Link: https://lore.kernel.org/r/20240126223800.2864613-1-sean.anderson@seco.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sean Anderson 2024-01-26 17:38:00 -05:00 committed by Greg Kroah-Hartman
parent 3fd6c16ec7
commit d31b886ed6
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/common/ulpi.c
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@ -301,7 +301,7 @@ static int ulpi_register(struct device *dev, struct ulpi *ulpi)
return ret;
}
root = debugfs_create_dir(dev_name(dev), ulpi_root);
root = debugfs_create_dir(dev_name(&ulpi->dev), ulpi_root);
debugfs_create_file("regs", 0444, root, ulpi, &ulpi_regs_fops);
dev_dbg(&ulpi->dev, "registered ULPI PHY: vendor %04x, product %04x\n",