From: Julia Lawall <[email protected]> Test the just-initialized value rather than some other one.
The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ identifier x,y,f!={PTR_ERR,ERR_PTR,ERR_CAST}; statement S; @@ x = f(...); ( if (\(x == NULL\|IS_ERR(x)\)) S | *if (\(y == NULL\|IS_ERR(y)\)) { ... when != x return ...; } ) // </smpl> Signed-off-by: Julia Lawall <[email protected]> --- drivers/staging/usbip/userspace/libsrc/vhci_driver.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/usbip/userspace/libsrc/vhci_driver.c b/drivers/staging/usbip/userspace/libsrc/vhci_driver.c index abbc285..2697877 100644 --- a/drivers/staging/usbip/userspace/libsrc/vhci_driver.c +++ b/drivers/staging/usbip/userspace/libsrc/vhci_driver.c @@ -133,7 +133,7 @@ static int check_usbip_device(struct sysfs_class_device *cdev) strlen(vhci_driver->hc_device->path))) { /* found usbip device */ usbip_cdev = calloc(1, sizeof(*usbip_cdev)); - if (!cdev) { + if (!usbip_cdev) { dbg("calloc failed"); return -1; } _______________________________________________ devel mailing list [email protected] http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
