[tip:irq/core] irqchip/irq-alpine-msi: Release the correct domain on error

From: tip-bot for Dan Carpenter
Date: Fri Mar 11 2016 - 04:13:20 EST

Commit-ID: 143d36a33b4d59a56bb8e913a17a105578fd3237
Gitweb: http://git.kernel.org/tip/143d36a33b4d59a56bb8e913a17a105578fd3237
Author: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
AuthorDate: Fri, 11 Mar 2016 11:14:43 +0300
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Fri, 11 Mar 2016 10:06:55 +0100

irqchip/irq-alpine-msi: Release the correct domain on error

The "msi_domain" variable is NULL here so it leads to a NULL dereference. It
looks like we actually intended to free "middle_domain".

Fixes: e6b78f2c3e14 ('irqchip: Add the Alpine MSIX interrupt controller')
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Cc: Jason Cooper <jason@xxxxxxxxxxxxxx>
Cc: Marc Zyngier <marc.zyngier@xxxxxxx>
Cc: Antoine Tenart <antoine.tenart@xxxxxxxxxxxxxxxxxx>
Cc: kernel-janitors@xxxxxxxxxxxxxxx
Cc: Tsahee Zidenberg <tsahee@xxxxxxxxxxxxxxxxx>
Link: 20160311081442.GE31887@mwanda">http://lkml.kernel.org/r/20160311081442.GE31887@mwanda
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

drivers/irqchip/irq-alpine-msi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-alpine-msi.c b/drivers/irqchip/irq-alpine-msi.c
index f871272..2538425 100644
--- a/drivers/irqchip/irq-alpine-msi.c
+++ b/drivers/irqchip/irq-alpine-msi.c
@@ -220,7 +220,7 @@ static int alpine_msix_init_domains(struct alpine_msix_data *priv,
if (!msi_domain) {
pr_err("Failed to create MSI domain\n");
- irq_domain_remove(msi_domain);
+ irq_domain_remove(middle_domain);
return -ENOMEM;