linux-kernel - [PATCH update] firewire: fw-ohci: shut up false compiler warning on PPC32

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Date:	Fri, 14 Mar 2008 00:27:49 +0100 (CET)
From:	Stefan Richter <stefanr@...6.in-berlin.de>
To:	linux1394-devel@...ts.sourceforge.net
cc:	linux-kernel@...r.kernel.org, Jarod Wilson <jwilson@...hat.com>
Subject: [PATCH update] firewire: fw-ohci: shut up false compiler warning on
 PPC32

Shut up "may be used uninitialised in this function" warnings due to
PPC32's implementation of dma_alloc_coherent().

Signed-off-by: Stefan Richter <stefanr@...6.in-berlin.de>
---

updated to be enqueued after patch
"firewire: fw-ohci: use dma_alloc_coherent for ar_buffer"

 drivers/firewire/fw-ohci.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Index: linux/drivers/firewire/fw-ohci.c
===================================================================
--- linux.orig/drivers/firewire/fw-ohci.c
+++ linux/drivers/firewire/fw-ohci.c
@@ -281,7 +281,7 @@ static int ar_context_add_page(struct ar
 {
 	struct device *dev = ctx->ohci->card.device;
 	struct ar_buffer *ab;
-	dma_addr_t ab_bus;
+	dma_addr_t uninitialized_var(ab_bus);
 	size_t offset;
 
 	ab = dma_alloc_coherent(dev, PAGE_SIZE, &ab_bus, GFP_ATOMIC);
@@ -536,7 +536,7 @@ static int
 context_add_buffer(struct context *ctx)
 {
 	struct descriptor_buffer *desc;
-	dma_addr_t bus_addr;
+	dma_addr_t uninitialized_var(bus_addr);
 	int offset;
 
 	/*
@@ -1321,7 +1321,7 @@ ohci_set_config_rom(struct fw_card *card
 	unsigned long flags;
 	int retval = -EBUSY;
 	__be32 *next_config_rom;
-	dma_addr_t next_config_rom_bus;
+	dma_addr_t uninitialized_var(next_config_rom_bus);
 
 	ohci = fw_ohci(card);
 

-- 
Stefan Richter
-=====-==--- --== -===-
http://arcgraph.de/sr/

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