The return value of disable_interrupts for SPARC is incorrect (false when all
interrupts were enabled).
As it may be used to allow re-enabling, this may causes hangs up.
Observed issue on FLASH write (flash_write_cfiword in drivers/mtd/cfi_flash.c)
Signed-off-by: Benoit Duhamel <benoit.duha...@alstom.com>
---
arch/sparc/lib/interrupts.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/sparc/lib/interrupts.c b/arch/sparc/lib/interrupts.c
index cb73d17..1de2cec 100644
--- a/arch/sparc/lib/interrupts.c
+++ b/arch/sparc/lib/interrupts.c
@@ -44,7 +44,8 @@ void enable_interrupts(void)
int disable_interrupts(void)
{
- return intLock();
+ /* Return TRUE if interrupts were previously enabled */
+ return intLock() < 15;
}
int interrupt_is_enabled(void)
--
1.7.1
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