Re: [PATCH] USB-FHCI: Use a signed return type for fhci_create_ep()

From: Sergei Shtylyov
Date: Sat Dec 19 2015 - 15:46:36 EST


Hello.

On 12/19/2015 11:15 PM, SF Markus Elfring wrote:

From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Sat, 19 Dec 2015 21:10:20 +0100

The return type "u32" was used by the fhci_create_ep() function even though
it will eventually return a negative error code.
Improve this implementation detail by using the type "s32" instead.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/usb/host/fhci-tds.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/fhci-tds.c b/drivers/usb/host/fhci-tds.c
index f82ad5d..c1ae172 100644
--- a/drivers/usb/host/fhci-tds.c
+++ b/drivers/usb/host/fhci-tds.c
@@ -149,7 +149,7 @@ void fhci_ep0_free(struct fhci_usb *usb)
* data_mem The data memory partition(BUS)
* ring_len TD ring length
*/
-u32 fhci_create_ep(struct fhci_usb *usb, enum fhci_mem_alloc data_mem,
+s32 fhci_create_ep(struct fhci_usb *usb, enum fhci_mem_alloc data_mem,

Should be just *int*, I think.

[...]

MBR, Sergei

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