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xhci: dbc: Fix memory leak in xhci_alloc_dbc()

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If DbC is already in use, then the allocated memory for the xhci_dbc struct
doesn't get freed before returning NULL, which leads to a memleak.

Fixes: 534675942e ("xhci: dbc: refactor xhci_dbc_init()")
Cc: stable@vger.kernel.org
Signed-off-by: Rafael Mendonca <rafaelmendsr@gmail.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20220921123450.671459-3-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Rafael Mendonca 2022-09-21 15:34:46 +03:00 committed by Greg Kroah-Hartman
parent 7e271f42a5
commit d591b32e51
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/host/xhci-dbgcap.c
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@ -988,7 +988,7 @@ xhci_alloc_dbc(struct device *dev, void __iomem *base, const struct dbc_driver *
dbc->driver = driver; dbc->driver = driver;
if (readl(&dbc->regs->control) & DBC_CTRL_DBC_ENABLE) if (readl(&dbc->regs->control) & DBC_CTRL_DBC_ENABLE)
return NULL; goto err;
INIT_DELAYED_WORK(&dbc->event_work, xhci_dbc_handle_events); INIT_DELAYED_WORK(&dbc->event_work, xhci_dbc_handle_events);
spin_lock_init(&dbc->lock); spin_lock_init(&dbc->lock);