All of lore.kernel.org
 help / color / mirror / Atom feed
* [PATCH 16/16] drivers/net/qlcnic: Use available error codes
@ 2010-08-16 16:29 ` Julia Lawall
  0 siblings, 0 replies; 11+ messages in thread
From: Julia Lawall @ 2010-08-16 16:29 UTC (permalink / raw)
  To: Amit Kumar Salecha, Anirban Chakraborty, linux-driver, netdev,
	linux-kernel, kernel-janitors

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.

 drivers/net/qlcnic/qlcnic_main.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/qlcnic/qlcnic_main.c b/drivers/net/qlcnic/qlcnic_main.c
index b9615bd..142ab1d 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[QLCNIC_MAX_PCI_FUNC];
-	int i, ret = 0, err;
+	int i, ret = 0;
 	u8 pfn;
 
 	if (!adapter->npars)
@@ -487,7 +487,7 @@ qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 		adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
 				QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
 	if (!adapter->eswitch) {
-		err = -ENOMEM;
+		ret = -ENOMEM;
 		goto err_eswitch;
 	}
 

^ permalink raw reply related	[flat|nested] 11+ messages in thread

end of thread, other threads:[~2010-08-18 21:28 UTC | newest]

Thread overview: 11+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2010-08-16 16:29 [PATCH 16/16] drivers/net/qlcnic: Use available error codes Julia Lawall
2010-08-16 16:29 ` Julia Lawall
2010-08-16 16:29 ` Julia Lawall
2010-08-16 18:35 ` Dan Carpenter
2010-08-16 18:35   ` Dan Carpenter
2010-08-16 19:05   ` Julia Lawall
2010-08-16 19:05     ` Julia Lawall
2010-08-16 20:23   ` Julia Lawall
2010-08-16 20:23     ` Julia Lawall
2010-08-18 21:28 ` David Miller
2010-08-18 21:28   ` David Miller

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.