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usb_host: Fix interface descriptor parsing

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Previously the USB host driver did not accept interface number greater or equal bNumInterfaces, even though these are valid interface numbers
This commit is contained in:
Tomas Rezucha 2023-02-10 15:49:11 +01:00 committed by Saurabh Kumar Bansal
parent 885e501d99
commit 3f1cff699d
1 changed files with 0 additions and 3 deletions
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components/usb/usb_helpers.c
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@ -76,9 +76,6 @@ int usb_parse_interface_number_of_alternate(const usb_config_desc_t *config_desc
const usb_intf_desc_t *usb_parse_interface_descriptor(const usb_config_desc_t *config_desc, uint8_t bInterfaceNumber, uint8_t bAlternateSetting, int *offset) const usb_intf_desc_t *usb_parse_interface_descriptor(const usb_config_desc_t *config_desc, uint8_t bInterfaceNumber, uint8_t bAlternateSetting, int *offset)
{ {
assert(config_desc != NULL); assert(config_desc != NULL);
if (bInterfaceNumber >= config_desc->bNumInterfaces) {
return NULL; //bInterfaceNumber is out of range
}
//Walk to first interface descriptor of bInterfaceNumber //Walk to first interface descriptor of bInterfaceNumber
int offset_temp = 0; int offset_temp = 0;