diff options
| author | Pawel Laszczak <pawell@cadence.com> | 2021-12-14 05:55:27 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-15 23:44:31 +0100 |
| commit | 4c4e162d9cf38528c4f13df09d5755cbc06f6c77 (patch) | |
| tree | 17be2434049ef268d9842e9d3da7fd9dc0502f33 /virt | |
| parent | 0ad3bd562bb91853b9f42bda145b5db6255aee90 (diff) | |
usb: cdnsp: Fix lack of spin_lock_irqsave/spin_lock_restore
Patch puts content of cdnsp_gadget_pullup function inside
spin_lock_irqsave and spin_lock_restore section.
This construction is required here to keep the data consistency,
otherwise some data can be changed e.g. from interrupt context.
Fixes: 3d82904559f4 ("usb: cdnsp: cdns3 Add main part of Cadence USBSSP DRD Driver")
Reported-by: Ken (Jian) He <jianhe@ambarella.com>
cc: <stable@vger.kernel.org>
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
--
Changelog:
v2:
- added disable_irq/enable_irq as sugester by Peter Chen
drivers/usb/cdns3/cdnsp-gadget.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
Reviewed-by: Peter Chen <peter.chen@kernel.org>
Link: https://lore.kernel.org/r/20211214045527.26823-1-pawell@gli-login.cadence.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'virt')
0 files changed, 0 insertions, 0 deletions