2018-01-03 20:11:05

by SF Markus Elfring

[permalink] [raw]
Subject: [PATCH 0/2] wireless: libertas_tf: Adjustments for three function implementations

From: Markus Elfring <[email protected]>
Date: Wed, 3 Jan 2018 21:06:54 +0100

Two update suggestions were taken into account
from static source code analysis.

Markus Elfring (2):
Delete an error message for a failed memory allocation
in __if_usb_submit_rx_urb()
Improve a size determination in two functions

drivers/net/wireless/marvell/libertas_tf/if_usb.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

--
2.15.1


2018-01-03 20:26:02

by SF Markus Elfring

[permalink] [raw]
Subject: [PATCH 2/2] wireless: libertas_tf: Improve a size determination in two functions

From: Markus Elfring <[email protected]>
Date: Wed, 3 Jan 2018 21:02:17 +0100

Replace the specification of data structures by variable references
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

Signed-off-by: Markus Elfring <[email protected]>
---
drivers/net/wireless/marvell/libertas_tf/if_usb.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/marvell/libertas_tf/if_usb.c b/drivers/net/wireless/marvell/libertas_tf/if_usb.c
index 9eebc84cd15a..98e81a6f2338 100644
--- a/drivers/net/wireless/marvell/libertas_tf/if_usb.c
+++ b/drivers/net/wireless/marvell/libertas_tf/if_usb.c
@@ -152,7 +152,7 @@ static int if_usb_probe(struct usb_interface *intf,
lbtf_deb_enter(LBTF_DEB_USB);
udev = interface_to_usbdev(intf);

- cardp = kzalloc(sizeof(struct if_usb_card), GFP_KERNEL);
+ cardp = kzalloc(sizeof(*cardp), GFP_KERNEL);
if (!cardp)
goto error;

@@ -536,8 +536,7 @@ static void if_usb_receive_fwload(struct urb *urb)
return;
}

- syncfwheader = kmemdup(skb->data, sizeof(struct fwsyncheader),
- GFP_ATOMIC);
+ syncfwheader = kmemdup(skb->data, sizeof(*syncfwheader), GFP_ATOMIC);
if (!syncfwheader) {
lbtf_deb_usbd(&cardp->udev->dev,
"Failure to allocate syncfwheader\n");
--
2.15.1

2018-01-03 20:12:04

by SF Markus Elfring

[permalink] [raw]
Subject: [PATCH 1/2] wireless: libertas_tf: Delete an error message for a failed memory allocation in __if_usb_submit_rx_urb()

From: Markus Elfring <[email protected]>
Date: Wed, 3 Jan 2018 20:55:10 +0100

Omit an extra message for a memory allocation failure in this function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <[email protected]>
---
drivers/net/wireless/marvell/libertas_tf/if_usb.c | 1 -
1 file changed, 1 deletion(-)

diff --git a/drivers/net/wireless/marvell/libertas_tf/if_usb.c b/drivers/net/wireless/marvell/libertas_tf/if_usb.c
index 5153922e7ce1..9eebc84cd15a 100644
--- a/drivers/net/wireless/marvell/libertas_tf/if_usb.c
+++ b/drivers/net/wireless/marvell/libertas_tf/if_usb.c
@@ -420,7 +420,6 @@ static int __if_usb_submit_rx_urb(struct if_usb_card *cardp,

skb = dev_alloc_skb(MRVDRV_ETH_RX_PACKET_BUFFER_SIZE);
if (!skb) {
- pr_err("No free skb\n");
lbtf_deb_leave(LBTF_DEB_USB);
return -1;
}
--
2.15.1