On 02/10/2014 03:15 PM, Christoph Hellwig wrote:
> On Mon, Feb 10, 2014 at 12:11:39PM +0100, Hannes Reinecke wrote:
>> + int vpd_len = 255;
>> + unsigned char *buffer;
>> +retry:
>> + buffer = kmalloc(vpd_len, GFP_KERNEL);
>> + if (!buffer)
>> + return;
>> +
>> + ret = scsi_get_vpd_page(sdev, 0x83, buffer, vpd_len);
>> + if (ret) {
>> + kfree(buffer);
>> + return;
>> + }
>> +
>> + vpd_len = (buffer[2] << 8) + buffer[3];
>> + if (vpd_len > 255) {
>> + kfree(buffer);
>> + goto retry;
>
> Won't this create an infinite loop if the VPD is longer than 255 bytes?
>
Hmm. Sort of.
Gnaa.
Will be redoing the patch.
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
[email protected] +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)
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