* [PATCH] usb: gadget: add error handling for skb_realloc_headroom
@ 2018-06-12 4:41 Zhouyang Jia
2018-06-19 9:47 ` Felipe Balbi
2018-06-19 12:23 ` [PATCH v2] " Zhouyang Jia
0 siblings, 2 replies; 4+ messages in thread
From: Zhouyang Jia @ 2018-06-12 4:41 UTC (permalink / raw)
Cc: Zhouyang Jia, Felipe Balbi, Greg Kroah-Hartman, Bhumika Goyal,
Johan Hovold, Andrew Gabbasov, David Lechner, linux-usb,
linux-kernel
When skb_realloc_headroom fails, the lack of error-handling code may
cause unexpected results.
This patch adds error-handling code after calling skb_realloc_headroom.
Signed-off-by: Zhouyang Jia <jiazhouyang09@gmail.com>
---
drivers/usb/gadget/function/f_rndis.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/usb/gadget/function/f_rndis.c b/drivers/usb/gadget/function/f_rndis.c
index d48df36..17c164b 100644
--- a/drivers/usb/gadget/function/f_rndis.c
+++ b/drivers/usb/gadget/function/f_rndis.c
@@ -374,6 +374,9 @@ static struct sk_buff *rndis_add_header(struct gether *port,
return NULL;
skb2 = skb_realloc_headroom(skb, sizeof(struct rndis_packet_msg_type));
+ if (!skb2)
+ return NULL;
+
rndis_add_hdr(skb2);
dev_kfree_skb(skb);
--
2.7.4
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] usb: gadget: add error handling for skb_realloc_headroom
2018-06-12 4:41 [PATCH] usb: gadget: add error handling for skb_realloc_headroom Zhouyang Jia
@ 2018-06-19 9:47 ` Felipe Balbi
2018-06-19 12:23 ` [PATCH v2] " Zhouyang Jia
1 sibling, 0 replies; 4+ messages in thread
From: Felipe Balbi @ 2018-06-19 9:47 UTC (permalink / raw)
To: linux-usb-owner
Cc: Zhouyang Jia, Greg Kroah-Hartman, Bhumika Goyal, Johan Hovold,
Andrew Gabbasov, David Lechner, linux-usb, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 356 bytes --]
Hi,
linux-usb-owner@vger.kernel.org writes:
> When skb_realloc_headroom fails, the lack of error-handling code may
> cause unexpected results.
>
> This patch adds error-handling code after calling skb_realloc_headroom.
>
> Signed-off-by: Zhouyang Jia <jiazhouyang09@gmail.com>
From linux-usb-owner??? I can't apply this patch.
--
balbi
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^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH v2] usb: gadget: add error handling for skb_realloc_headroom
2018-06-12 4:41 [PATCH] usb: gadget: add error handling for skb_realloc_headroom Zhouyang Jia
2018-06-19 9:47 ` Felipe Balbi
@ 2018-06-19 12:23 ` Zhouyang Jia
2018-06-29 6:36 ` Felipe Balbi
1 sibling, 1 reply; 4+ messages in thread
From: Zhouyang Jia @ 2018-06-19 12:23 UTC (permalink / raw)
Cc: Zhouyang Jia, Felipe Balbi, Greg Kroah-Hartman, Vincent Pelletier,
Johan Hovold, David Lechner, Bhumika Goyal, Andrew Gabbasov,
linux-usb, linux-kernel
When skb_realloc_headroom fails, the lack of error-handling code may
cause unexpected results.
This patch adds error-handling code after calling skb_realloc_headroom.
Signed-off-by: Zhouyang Jia <jiazhouyang09@gmail.com>
---
drivers/usb/gadget/function/f_rndis.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/usb/gadget/function/f_rndis.c b/drivers/usb/gadget/function/f_rndis.c
index d48df36..17c164b 100644
--- a/drivers/usb/gadget/function/f_rndis.c
+++ b/drivers/usb/gadget/function/f_rndis.c
@@ -374,6 +374,9 @@ static struct sk_buff *rndis_add_header(struct gether *port,
return NULL;
skb2 = skb_realloc_headroom(skb, sizeof(struct rndis_packet_msg_type));
+ if (!skb2)
+ return NULL;
+
rndis_add_hdr(skb2);
dev_kfree_skb(skb);
--
2.7.4
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH v2] usb: gadget: add error handling for skb_realloc_headroom
2018-06-19 12:23 ` [PATCH v2] " Zhouyang Jia
@ 2018-06-29 6:36 ` Felipe Balbi
0 siblings, 0 replies; 4+ messages in thread
From: Felipe Balbi @ 2018-06-29 6:36 UTC (permalink / raw)
To: linux-usb-owner
Cc: Zhouyang Jia, Greg Kroah-Hartman, Vincent Pelletier, Johan Hovold,
David Lechner, Bhumika Goyal, Andrew Gabbasov, linux-usb,
linux-kernel
Hi,
linux-usb-owner@vger.kernel.org writes:
> When skb_realloc_headroom fails, the lack of error-handling code may
> cause unexpected results.
>
> This patch adds error-handling code after calling skb_realloc_headroom.
>
> Signed-off-by: Zhouyang Jia <jiazhouyang09@gmail.com>
from linux-usb-owner@vger.kernel.org??
--
balbi
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2018-06-29 6:38 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2018-06-12 4:41 [PATCH] usb: gadget: add error handling for skb_realloc_headroom Zhouyang Jia
2018-06-19 9:47 ` Felipe Balbi
2018-06-19 12:23 ` [PATCH v2] " Zhouyang Jia
2018-06-29 6:36 ` Felipe Balbi
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