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path: root/drivers/usb/core/driver.c
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Diffstat (limited to 'drivers/usb/core/driver.c')
-rw-r--r--drivers/usb/core/driver.c24
1 files changed, 17 insertions, 7 deletions
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index 5d01558cef66..ab90a0156828 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -63,8 +63,10 @@ ssize_t usb_store_new_id(struct usb_dynids *dynids,
63 dynid->id.idProduct = idProduct; 63 dynid->id.idProduct = idProduct;
64 dynid->id.match_flags = USB_DEVICE_ID_MATCH_DEVICE; 64 dynid->id.match_flags = USB_DEVICE_ID_MATCH_DEVICE;
65 if (fields > 2 && bInterfaceClass) { 65 if (fields > 2 && bInterfaceClass) {
66 if (bInterfaceClass > 255) 66 if (bInterfaceClass > 255) {
67 return -EINVAL; 67 retval = -EINVAL;
68 goto fail;
69 }
68 70
69 dynid->id.bInterfaceClass = (u8)bInterfaceClass; 71 dynid->id.bInterfaceClass = (u8)bInterfaceClass;
70 dynid->id.match_flags |= USB_DEVICE_ID_MATCH_INT_CLASS; 72 dynid->id.match_flags |= USB_DEVICE_ID_MATCH_INT_CLASS;
@@ -73,17 +75,21 @@ ssize_t usb_store_new_id(struct usb_dynids *dynids,
73 if (fields > 4) { 75 if (fields > 4) {
74 const struct usb_device_id *id = id_table; 76 const struct usb_device_id *id = id_table;
75 77
76 if (!id) 78 if (!id) {
77 return -ENODEV; 79 retval = -ENODEV;
80 goto fail;
81 }
78 82
79 for (; id->match_flags; id++) 83 for (; id->match_flags; id++)
80 if (id->idVendor == refVendor && id->idProduct == refProduct) 84 if (id->idVendor == refVendor && id->idProduct == refProduct)
81 break; 85 break;
82 86
83 if (id->match_flags) 87 if (id->match_flags) {
84 dynid->id.driver_info = id->driver_info; 88 dynid->id.driver_info = id->driver_info;
85 else 89 } else {
86 return -ENODEV; 90 retval = -ENODEV;
91 goto fail;
92 }
87 } 93 }
88 94
89 spin_lock(&dynids->lock); 95 spin_lock(&dynids->lock);
@@ -95,6 +101,10 @@ ssize_t usb_store_new_id(struct usb_dynids *dynids,
95 if (retval) 101 if (retval)
96 return retval; 102 return retval;
97 return count; 103 return count;
104
105fail:
106 kfree(dynid);
107 return retval;
98} 108}
99EXPORT_SYMBOL_GPL(usb_store_new_id); 109EXPORT_SYMBOL_GPL(usb_store_new_id);
100 110