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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2009-01-27 23:20:00 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-01-28 10:19:53 +0000
commitecbab71c521819716e204659dfe72fc39d00630a (patch)
tree82b8913f99c4a019ac9f2e0271f323b28f6bcca4 /arch/arm
parent9ce8bb55e32d11bb82e19e76bdd2cf1c2ed32fd1 (diff)
[ARM] call undefined instruction exception handler with irqs enabled
Aaro says: > With spinlock debugs enabled I get might_sleep() warnings when using > ptrace. tracked down to a missing enable_irq before calling do_undefinstr(). Reported-by: Aaro Koskinen <aaro.koskinen@nokia.com> Tested-by: Aaro Koskinen <aaro.koskinen@nokia.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/kernel/entry-armv.S1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 77b04747553..85040cfeb5e 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -650,6 +650,7 @@ ENTRY(fp_enter)
no_fp: mov pc, lr
__und_usr_unknown:
+ enable_irq
mov r0, sp
adr lr, ret_from_exception
b do_undefinstr