diff options
author | Sang-Hun Lee <sanlee@nvidia.com> | 2012-05-15 16:04:41 -0700 |
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committer | Simone Willett <swillett@nvidia.com> | 2012-05-25 09:56:22 -0700 |
commit | 168971ab0977d04e958671651c0be4be116fee01 (patch) | |
tree | 24c12f96cd2a0d52ad980e26d87e1a423e9f2dad /drivers/connector | |
parent | eff5dd61e05e1b01c396609e2129a8ab433d2666 (diff) |
tegra: usb: disable interrupts when locking
Problem description:
- tegra_udc_irq uses udc->lock
- Some functions running in the process context was not disabling
interrupts when locking udc->lock
- If a function gets interrupted by tegra_udc_irq after locking
udc->lock, a deadlock occurs, as tegra_udc_irq would also try to
lock
Fix description:
- Use an interruption disabling variant of spin_lock
Bug 983958
Change-Id: Ib774847212da64f1f727a207a4821860ffa7b4a8
Signed-off-by: Sang-Hun Lee <sanlee@nvidia.com>
Reviewed-on: http://git-master/r/102693
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>
GVS: Gerrit_Virtual_Submit
Diffstat (limited to 'drivers/connector')
0 files changed, 0 insertions, 0 deletions