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Subject[PATCH 4.9 144/207] xen-pciback: Fix return in pm_ctrl_init()
Date
From: YueHaibing <yuehaibing@huawei.com>

[ Upstream commit 4745ea2628bb43a7ec34b71763b5a56407b33990 ]

Return NULL instead of passing to ERR_PTR while err is zero,
this fix smatch warnings:
drivers/xen/xen-pciback/conf_space_capability.c:163
pm_ctrl_init() warn: passing zero to 'ERR_PTR'

Fixes: a92336a1176b ("xen/pciback: Drop two backends, squash and cleanup some code.")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20211008074417.8260-1-yuehaibing@huawei.com
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/xen/xen-pciback/conf_space_capability.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/xen/xen-pciback/conf_space_capability.c b/drivers/xen/xen-pciback/conf_space_capability.c
index b1a1d7de0894e..daa2e89a50fa3 100644
--- a/drivers/xen/xen-pciback/conf_space_capability.c
+++ b/drivers/xen/xen-pciback/conf_space_capability.c
@@ -159,7 +159,7 @@ static void *pm_ctrl_init(struct pci_dev *dev, int offset)
}

out:
- return ERR_PTR(err);
+ return err ? ERR_PTR(err) : NULL;
}

static const struct config_field caplist_pm[] = {
--
2.33.0


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