Patchwork [16/16] drivers/net/qlcnic: Use available error codes

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Submitter Julia Lawall
Date Aug. 16, 2010, 8:23 p.m.
Message ID <Pine.LNX.4.64.1008162222450.12526@ask.diku.dk>
Download mbox | patch
Permalink /patch/61836/
State Accepted
Delegated to: David Miller
Headers show

Comments

Julia Lawall - Aug. 16, 2010, 8:23 p.m.
From: Julia Lawall <julia@diku.dk>

The error code is stored in the variable err, but it is the variable ret
that is returned instead.  So store the error code in ret.  Err is then
useless.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
local idexpression x;
constant C;
@@

if (...) { ...
  x = -C
  ... when != x
(
  return <+...x...+>;
|
  return NULL;
|
  return;
|
* return ...;
)
}
// </smpl>

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

---
This changes the semantics and has not been tested.
This version is based on a more recent version of the file than the 
previous version.

 drivers/net/qlcnic/qlcnic_main.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

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Patch

diff --git a/drivers/net/qlcnic/qlcnic_main.c b/drivers/net/qlcnic/qlcnic_main.c
index bf6d87a..81d9d75 100644
--- a/drivers/net/qlcnic/qlcnic_main.c
+++ b/drivers/net/qlcnic/qlcnic_main.c
@@ -474,7 +474,7 @@  static int
 qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 {
 	struct qlcnic_pci_info *pci_info;
-	int i, ret = 0, err;
+	int i, ret = 0;
 	u8 pfn;
 
 	pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
@@ -484,14 +484,14 @@  qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 	adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 				QLCNIC_MAX_PCI_FUNC, GFP_KERNEL);
 	if (!adapter->npars) {
-		err = -ENOMEM;
+		ret = -ENOMEM;
 		goto err_pci_info;
 	}
 
 	adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
 				QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
 	if (!adapter->eswitch) {
-		err = -ENOMEM;
+		ret = -ENOMEM;
 		goto err_npars;
 	}