usb: dwc3: Fix NULL pointer exception in dwc3_pci_remove()

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commit 7b412b04a0 upstream.

In dwc3_pci_quirks() function, gpiod lookup table is only registered for
baytrail SOC. But in dwc3_pci_remove(), we try to unregistered it
without any checks. This leads to NULL pointer de-reference exception in
gpiod_remove_lookup_table() when unloading the module for non baytrail
SOCs. This patch fixes this issue.

Fixes: 5741022cbd ("usb: dwc3: pci: Add GPIO lookup table on platforms
without ACPI GPIO resources")
Cc: <stable@vger.kernel.org>
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Kuppuswamy Sathyanarayanan 2018-10-17 11:40:26 -07:00 • committed by Greg Kroah-Hartman

parent c4d1e71e56

commit 2ff85eaf16

1 changed files with 3 additions and 1 deletions

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drivers/usb/dwc3/dwc3-pci.c

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