From: dan.carpenter@oracle.com (Dan Carpenter)
To: linux-arm-kernel@lists.infradead.org
Subject: [patch] serial: stm32: fix a type issue
Date: Wed, 12 Oct 2016 09:21:03 +0300 [thread overview]
Message-ID: <20161012062103.GS12841@mwanda> (raw)
We store UNDEF_REG in a u8. It causes a problem in functions like
stm32_tx_dma_complete() where we check "if (ofs->icr == UNDEF_REG)".
Fixes: 3489187204eb ('serial: stm32: adding dma support')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/tty/serial/stm32-usart.h b/drivers/tty/serial/stm32-usart.h
index 41d9749..f9887cc 100644
--- a/drivers/tty/serial/stm32-usart.h
+++ b/drivers/tty/serial/stm32-usart.h
@@ -31,7 +31,7 @@ struct stm32_usart_info {
struct stm32_usart_config cfg;
};
-#define UNDEF_REG ~0
+#define UNDEF_REG 0xFF
/* Register offsets */
struct stm32_usart_info stm32f4_info = {
next reply other threads:[~2016-10-12 6:21 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-12 6:21 Dan Carpenter [this message]
2016-10-12 7:40 ` [patch] serial: stm32: fix a type issue Gerald Baeza
2016-10-12 8:52 ` Russell King - ARM Linux
2016-10-12 9:11 ` Dan Carpenter
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