[PATCH] drivers/target/target_core_configfs.c: fix error return code

From: Peter Senna Tschudin
Date: Mon Sep 17 2012 - 14:05:34 EST


From: Peter Senna Tschudin <peter.senna@xxxxxxxxx>

Convert a nonnegative error return code to a negative one, as returned
elsewhere in the function.

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

// <smpl>
(
if@p1 (\(ret < 0\|ret != 0\))
{ ... return ret; }
|
ret@p1 = 0
)
... when != ret = e1
when != &ret
*if(...)
{
... when != ret = e2
when forall
return ret;
}
// </smpl>

Signed-off-by: Peter Senna Tschudin <peter.senna@xxxxxxxxx>
---
drivers/target/target_core_configfs.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index a1b4171..015f5be 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -3124,6 +3124,7 @@ static int __init target_core_init_configfs(void)
GFP_KERNEL);
if (!target_cg->default_groups) {
pr_err("Unable to allocate target_cg->default_groups\n");
+ ret = -ENOMEM;
goto out_global;
}

@@ -3139,6 +3140,7 @@ static int __init target_core_init_configfs(void)
GFP_KERNEL);
if (!hba_cg->default_groups) {
pr_err("Unable to allocate hba_cg->default_groups\n");
+ ret = -ENOMEM;
goto out_global;
}
config_group_init_type_name(&alua_group,
@@ -3154,6 +3156,7 @@ static int __init target_core_init_configfs(void)
GFP_KERNEL);
if (!alua_cg->default_groups) {
pr_err("Unable to allocate alua_cg->default_groups\n");
+ ret = -ENOMEM;
goto out_global;
}

@@ -3165,14 +3168,17 @@ static int __init target_core_init_configfs(void)
* Add core/alua/lu_gps/default_lu_gp
*/
lu_gp = core_alua_allocate_lu_gp("default_lu_gp", 1);
- if (IS_ERR(lu_gp))
+ if (IS_ERR(lu_gp)) {
+ ret = -ENOMEM;
goto out_global;
+ }

lu_gp_cg = &alua_lu_gps_group;
lu_gp_cg->default_groups = kzalloc(sizeof(struct config_group) * 2,
GFP_KERNEL);
if (!lu_gp_cg->default_groups) {
pr_err("Unable to allocate lu_gp_cg->default_groups\n");
+ ret = -ENOMEM;
goto out_global;
}

--
1.7.11.4

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