Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0400b697ef20247d26427e4beb6a84ca5aa51f45
Commit: 0400b697ef20247d26427e4beb6a84ca5aa51f45
Parent: 98bcef56cadb4da138e2c1a2a0790f372382b236
Author: Haavard Skinnemoen <[EMAIL PROTECTED]>
AuthorDate: Sat Feb 23 15:23:36 2008 -0800
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Sat Feb 23 17:12:14 2008 -0800
atmel_serial: fix interrupt handler return value
We should only return IRQ_HANDLED when we actually found something to
handle. This is important since the USART interrupt handler may be
shared with the timer interrupt on some chips.
Pointed-out-by: michael <[EMAIL PROTECTED]>
Signed-off-by: Haavard Skinnemoen <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
drivers/serial/atmel_serial.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c
index fad245b..d57bf3e 100644
--- a/drivers/serial/atmel_serial.c
+++ b/drivers/serial/atmel_serial.c
@@ -549,7 +549,7 @@ static irqreturn_t atmel_interrupt(int irq, void *dev_id)
atmel_handle_transmit(port, pending);
} while (pass_counter++ < ATMEL_ISR_PASS_LIMIT);
- return IRQ_HANDLED;
+ return pass_counter ? IRQ_HANDLED : IRQ_NONE;
}
/*
-
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