* [PATCH] OMAP: OneNAND: panic_write may be in an interrupt context
@ 2009-03-23 13:07 Adrian Hunter
0 siblings, 0 replies; 2+ messages in thread
From: Adrian Hunter @ 2009-03-23 13:07 UTC (permalink / raw)
To: David Woodhouse; +Cc: linux-mtd Mailing List
>From 92a79a1a210845d64077e7ac100ddde8f251018b Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@nokia.com>
Date: Mon, 23 Mar 2009 14:57:38 +0200
Subject: [PATCH] OMAP: OneNAND: panic_write may be in an interrupt context
panic_write may read in an interrupt context.
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
---
drivers/mtd/onenand/omap2.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c
index 77a4f14..2c199b3 100644
--- a/drivers/mtd/onenand/omap2.c
+++ b/drivers/mtd/onenand/omap2.c
@@ -294,6 +294,10 @@ static int omap3_onenand_read_bufferram(struct mtd_info *mtd, int area,
if (bram_offset & 3 || (size_t)buf & 3 || count < 384)
goto out_copy;
+ /* panic_write() may be in an interrupt context */
+ if (in_interrupt())
+ goto out_copy;
+
if (buf >= high_memory) {
struct page *p1;
--
1.5.6.3
^ permalink raw reply related [flat|nested] 2+ messages in thread* [PATCH] OMAP: OneNAND: panic_write may be in an interrupt context
@ 2009-03-23 12:57 Adrian Hunter
0 siblings, 0 replies; 2+ messages in thread
From: Adrian Hunter @ 2009-03-23 12:57 UTC (permalink / raw)
To: linux-mtd
panic_write may read in an interrupt context.
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
---
drivers/mtd/onenand/omap2.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c
index 77a4f14..2c199b3 100644
--- a/drivers/mtd/onenand/omap2.c
+++ b/drivers/mtd/onenand/omap2.c
@@ -294,6 +294,10 @@ static int omap3_onenand_read_bufferram(struct mtd_info *mtd, int area,
if (bram_offset & 3 || (size_t)buf & 3 || count < 384)
goto out_copy;
+ /* panic_write() may be in an interrupt context */
+ if (in_interrupt())
+ goto out_copy;
+
if (buf >= high_memory) {
struct page *p1;
--
1.5.6.3
^ permalink raw reply related [flat|nested] 2+ messages in thread
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