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serial: make tsr_retry unsigned

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It can never become negative; reflect this in the type of the field
and simplify the conditions.

Tested-by: Bret Ketchum <bcketchum@gmail.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2016-06-14 14:17:16 +02:00
parent 0ead93120e
commit 807464d8a7
2 changed files with 9 additions and 5 deletions
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2
include/hw/char/serial.h
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@ -55,7 +55,7 @@ struct SerialState {
int last_break_enable;
int it_shift;
int baudbase;
int tsr_retry;
uint32_t tsr_retry;
uint32_t wakeup;
/* Time when the last byte was successfully sent out of the tsr */