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thermosphère: fix deadlock

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This commit is contained in:
TuxSH 2020-02-02 19:03:04 +00:00
parent c12a32c540
commit 7935c8b1ad
1 changed files with 4 additions and 1 deletions
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5
thermosphere/src/transport_interface.c
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@ -159,8 +159,11 @@ TransportInterface *transportInterfaceCreate(
void transportInterfaceAcquire(TransportInterface *iface) void transportInterfaceAcquire(TransportInterface *iface)
{ {
// Allow interrupts to be taken here if the caller allows it
recursiveSpinlockLock(&iface->lock);
// Get the lock, prevent the interrupt from being pending if there's incoming data // Get the lock, prevent the interrupt from being pending if there's incoming data
u64 flags = recursiveSpinlockLockMaskIrq(&iface->lock); u64 flags = maskIrq();
switch (iface->type) { switch (iface->type) {
case TRANSPORT_INTERFACE_TYPE_UART: { case TRANSPORT_INTERFACE_TYPE_UART: {