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usb: usb_dc_native_posix: Check return values in dc_write()

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Fixes coverity issue:

Fixes #20836
Fixes #20837

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
This commit is contained in:
Andrei Emeltchenko 2019-11-21 10:33:04 +02:00 • committed by Anas Nashif
commit 5b22c88184
3 changed files with 17 additions and 7 deletions
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14
drivers/usb/device/usb_dc_native_posix.c
View file

@ -351,8 +351,13 @@ int usb_dc_ep_write(const u8_t ep, const u8_t *const data,
}
if (USBIP_EP_ADDR2IDX(ep) == 0) {
usbip_send_common(ep, data_len);
usbip_send(ep, data, data_len);
if (!usbip_send_common(ep, data_len)) {
return -EIO;
}
if (usbip_send(ep, data, data_len) != data_len) {
return -EIO;
}
} else {
u8_t ep_idx = USBIP_EP_ADDR2IDX(ep);
struct usb_ep_ctrl_prv *ctrl = &usbip_ctrl.in_ep_ctrl[ep_idx];
@ -524,7 +529,6 @@ int handle_usb_data(struct usbip_header *hdr)
{
u8_t ep_idx = ntohl(hdr->common.ep);
usb_dc_ep_callback ep_cb;
int bytes;
u8_t ep;
LOG_DBG("ep_idx %u", ep_idx);
@ -540,7 +544,9 @@ int handle_usb_data(struct usbip_header *hdr)
ep_cb(ep, USB_DC_EP_DATA_OUT);
/* Send ACK reply */
bytes = usbip_send_common(ep, 0);
if (!usbip_send_common(ep, 0)) {
return -EIO;
}
} else {
if (ep_idx >= USBIP_IN_EP_NUM) {
return -EINVAL;

8
drivers/usb/device/usb_dc_native_posix_adapt.c
View file

@ -437,7 +437,7 @@ int usbip_send(u8_t ep, const u8_t *data, size_t len)
return send(connfd_global, data, len, 0);
}
int usbip_send_common(u8_t ep, u32_t data_len)
bool usbip_send_common(u8_t ep, u32_t data_len)
{
struct usbip_submit_rsp rsp;
@ -455,5 +455,9 @@ int usbip_send_common(u8_t ep, u32_t data_len)
rsp.setup = htonl(0);
return usbip_send(ep, (u8_t *)&rsp, sizeof(rsp));
if (usbip_send(ep, (u8_t *)&rsp, sizeof(rsp)) == sizeof(rsp)) {
return true;
}
return false;
}

2
drivers/usb/device/usb_dc_native_posix_adapt.h
View file

@ -97,7 +97,7 @@ struct usbip_header {
/* Function definitions */
int usbip_recv(u8_t *buf, size_t len);
int usbip_send_common(u8_t ep, u32_t data_len);
bool usbip_send_common(u8_t ep, u32_t data_len);
int usbip_send(u8_t ep, const u8_t *data, size_t len);
void usbip_start(void);