linux-kernel - [tip: irq/core] ARM: sa1111: Fix irq

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Date:   Sun, 29 Mar 2020 20:26:18 -0000
From:   "tip-bot2 for Marc Zyngier" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Marc Zyngier <maz@...nel.org>, x86 <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [tip: irq/core] ARM: sa1111: Fix irq_retrigger callback return value

The following commit has been merged into the irq/core branch of tip:

Commit-ID:     ad00a325a09791f4637bf5d2ec627ed2c292653e
Gitweb:        https://git.kernel.org/tip/ad00a325a09791f4637bf5d2ec627ed2c292653e
Author:        Marc Zyngier <maz@...nel.org>
AuthorDate:    Tue, 10 Mar 2020 18:49:20 
Committer:     Marc Zyngier <maz@...nel.org>
CommitterDate: Mon, 16 Mar 2020 15:48:54 

ARM: sa1111: Fix irq_retrigger callback return value

The irq_retrigger callback is supposed to return 0 when retrigger
has failed, and a non-zero value otherwise. Tell the core code
that the driver has succedded in using the HW to retrigger the
interrupt (if ever).

Signed-off-by: Marc Zyngier <maz@...nel.org>
Link: https://lore.kernel.org/r/20200310184921.23552-4-maz@kernel.org
---
 arch/arm/common/sa1111.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c
index 947ef79..c98ebae 100644
--- a/arch/arm/common/sa1111.c
+++ b/arch/arm/common/sa1111.c
@@ -302,10 +302,13 @@ static int sa1111_retrigger_irq(struct irq_data *d)
 			break;
 	}
 
-	if (i == 8)
+	if (i == 8) {
 		pr_err("Danger Will Robinson: failed to re-trigger IRQ%d\n",
 		       d->irq);
-	return i == 8 ? -1 : 0;
+		return 0;
+	}
+
+	return 1;
 }
 
 static int sa1111_type_irq(struct irq_data *d, unsigned int flags)