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authorChristophe Leroy <christophe.leroy@c-s.fr>2017-03-10 11:37:01 +0100
committerMichael Ellerman <mpe@ellerman.id.au>2017-06-02 19:20:44 +1000
commit3c29b6038828c1f4c9ecbfec14d4fc5e25f1c947 (patch)
tree79928183bab2f4dbb771fc575876f494b74c4d75 /arch/powerpc/sysdev
parent362957c27ed0d9ff485d3266ed22d944cbfea6cc (diff)
downloadop-kernel-dev-3c29b6038828c1f4c9ecbfec14d4fc5e25f1c947.zip
op-kernel-dev-3c29b6038828c1f4c9ecbfec14d4fc5e25f1c947.tar.gz
powerpc/8xx: fix mpc8xx_get_irq() return on no irq
IRQ 0 is a valid HW interrupt. So get_irq() shall return 0 when there is no irq, instead of returning irq_linear_revmap(... ,0) Fixes: f2a0bd3753dad ("[POWERPC] 8xx: powerpc port of core CPM PIC") Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/sysdev')
-rw-r--r--arch/powerpc/sysdev/mpc8xx_pic.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/sysdev/mpc8xx_pic.c b/arch/powerpc/sysdev/mpc8xx_pic.c
index 3e828b2..2842f9d 100644
--- a/arch/powerpc/sysdev/mpc8xx_pic.c
+++ b/arch/powerpc/sysdev/mpc8xx_pic.c
@@ -79,7 +79,7 @@ unsigned int mpc8xx_get_irq(void)
irq = in_be32(&siu_reg->sc_sivec) >> 26;
if (irq == PIC_VEC_SPURRIOUS)
- irq = 0;
+ return 0;
return irq_linear_revmap(mpc8xx_pic_host, irq);
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