crewID/libnfc
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Fix invalid memory access when a new driver is probing for hardware and the number of requested devices was already reached.

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The probing functions assume that at least one device should be found and
passed to the caller, and only after finding such a device they will check that
they should eventually stop looking for more devices.  While we could make each
probing function capable of handling the special-case of finding 0 devices, it
is much more consistent to perform the check from the calling function.
This commit is contained in:
Romain Tartiere 2011-06-30 13:35:40 +00:00
parent fd19773c21
commit 84918fd075
1 changed files with 2 additions and 0 deletions
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2
libnfc/nfc.c
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@ -154,6 +154,8 @@ nfc_list_devices (nfc_device_desc_t pnddDevices[], size_t szDevices, size_t * ps
if (ndr->probe (pnddDevices + (*pszDeviceFound), szDevices - (*pszDeviceFound), &szN)) {
*pszDeviceFound += szN;
DBG ("%ld device(s) found using %s driver", (unsigned long) szN, ndr->name);
if (*pszDeviceFound == szDevices)
break;
}
pndr++;
}