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[PATCH 47/87] tty: serial: remove memset after pci_alloc_consistent in icom.c

From: Fuqian Huang <hidden>
Date: 2019-06-27 17:41:45
Also in: lkml
Subsystem: the rest, tty layer and serial drivers · Maintainers: Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby

pci_alloc_consistent calls dma_alloc_coherent directly.
In commit af7ddd8a627c
("Merge tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mapping"),
dma_alloc_coherent has already zeroed the memory.
So memset is not needed.

Signed-off-by: Fuqian Huang <redacted>
---
 drivers/tty/serial/icom.c | 2 --
 1 file changed, 2 deletions(-)
diff --git a/drivers/tty/serial/icom.c b/drivers/tty/serial/icom.c
index ad374f7c476d..624f3d541c68 100644
--- a/drivers/tty/serial/icom.c
+++ b/drivers/tty/serial/icom.c
@@ -207,8 +207,6 @@ static int get_port_memory(struct icom_port *icom_port)
 		return -ENOMEM;
 	}
 
-	memset(icom_port->statStg, 0, 4096);
-
 	/* FODs: Frame Out Descriptor Queue, this is a FIFO queue that
            indicates that frames are to be transmitted
 	*/
-- 
2.11.0
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