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authorYuyang Du <yuyang.du@intel.com>2017-05-22 13:20:18 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-06-13 11:48:24 +0300
commite55dea8ede2245918c537b9a252a1269f5d7b78b (patch)
treed1cada6c6559989bd867ef11e7743ff470cc5b7c /tools/usb/usbip/libsrc/vhci_driver.c
parentfd92b7deb98a4edd31ffcc2d64cee36103805ff5 (diff)
downloadlinux-e55dea8ede2245918c537b9a252a1269f5d7b78b.tar.xz
usb: usbip tool: Fix parse_status()
In parse_status(), all nports number of idev's are initiated to 0 by memset(), it is simply wrong, because parse_status() reads the status sys file one by one, therefore, it can only update the according vhci_driver->idev's for it to parse. Reviewed-by: Krzysztof Opasiak <k.opasiak@samsung.com> Signed-off-by: Yuyang Du <yuyang.du@intel.com> Acked-by: Shuah Khan <shuahkh@osg.samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/usb/usbip/libsrc/vhci_driver.c')
-rw-r--r--tools/usb/usbip/libsrc/vhci_driver.c38
1 files changed, 15 insertions, 23 deletions
diff --git a/tools/usb/usbip/libsrc/vhci_driver.c b/tools/usb/usbip/libsrc/vhci_driver.c
index aa82c4b17797..f519c73c6d99 100644
--- a/tools/usb/usbip/libsrc/vhci_driver.c
+++ b/tools/usb/usbip/libsrc/vhci_driver.c
@@ -36,18 +36,11 @@ err:
return NULL;
}
-
-
static int parse_status(const char *value)
{
int ret = 0;
char *c;
-
- for (int i = 0; i < vhci_driver->nports; i++)
- memset(&vhci_driver->idev[i], 0, sizeof(vhci_driver->idev[i]));
-
-
/* skip a header line */
c = strchr(value, '\n');
if (!c)
@@ -58,6 +51,7 @@ static int parse_status(const char *value)
int port, status, speed, devid;
unsigned long socket;
char lbusid[SYSFS_BUS_ID_SIZE];
+ struct usbip_imported_device *idev;
ret = sscanf(c, "%d %d %d %x %lx %31s\n",
&port, &status, &speed,
@@ -72,30 +66,28 @@ static int parse_status(const char *value)
port, status, speed, devid);
dbg("socket %lx lbusid %s", socket, lbusid);
-
/* if a device is connected, look at it */
- {
- struct usbip_imported_device *idev = &vhci_driver->idev[port];
+ idev = &vhci_driver->idev[port];
- idev->port = port;
- idev->status = status;
+ memset(idev, 0, sizeof(*idev));
- idev->devid = devid;
+ idev->port = port;
+ idev->status = status;
- idev->busnum = (devid >> 16);
- idev->devnum = (devid & 0x0000ffff);
+ idev->devid = devid;
- if (idev->status != VDEV_ST_NULL
- && idev->status != VDEV_ST_NOTASSIGNED) {
- idev = imported_device_init(idev, lbusid);
- if (!idev) {
- dbg("imported_device_init failed");
- return -1;
- }
+ idev->busnum = (devid >> 16);
+ idev->devnum = (devid & 0x0000ffff);
+
+ if (idev->status != VDEV_ST_NULL
+ && idev->status != VDEV_ST_NOTASSIGNED) {
+ idev = imported_device_init(idev, lbusid);
+ if (!idev) {
+ dbg("imported_device_init failed");
+ return -1;
}
}
-
/* go to the next line */
c = strchr(c, '\n');
if (!c)