linux-kernel - [PATCH 7/12] drivers/pcmcia: Add missing local_irq

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Date:	Mon, 29 Mar 2010 17:35:24 +0200 (CEST)
From:	Julia Lawall <julia@...u.dk>
To:	linux-pcmcia@...ts.infradead.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [PATCH 7/12] drivers/pcmcia: Add missing local_irq_restore

From: Julia Lawall <julia@...u.dk>

Use local_irq_restore in this error-handling case just like in the one just
below.

A simplified version of the semantic patch that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r exists@
expression E1;
identifier f;
@@

f (...) { <+...
* local_irq_save (E1,...);
... when != E1
* return ...;
...+> }
// </smpl>

Signed-off-by: Julia Lawall <julia@...u.dk>

---
 drivers/pcmcia/db1xxx_ss.c          |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/pcmcia/db1xxx_ss.c b/drivers/pcmcia/db1xxx_ss.c
index a520193..a3fec01 100644
--- a/drivers/pcmcia/db1xxx_ss.c
+++ b/drivers/pcmcia/db1xxx_ss.c
@@ -165,8 +165,10 @@ static int db1x_pcmcia_setup_irqs(struct db1x_pcmcia_sock *sock)
 
 		ret = request_irq(sock->insert_irq, db1200_pcmcia_cdirq,
 				  IRQF_DISABLED, "pcmcia_insert", sock);
-		if (ret)
+		if (ret) {
+			local_irq_restore(flags);
 			goto out1;
+		}
 
 		ret = request_irq(sock->eject_irq, db1200_pcmcia_cdirq,
 				  IRQF_DISABLED, "pcmcia_eject", sock);
--
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