[PATCH v5] ppc44x:PHY fixup for USB on canyonlands board
Rupjyoti Sarmah
rsarmah at apm.com
Mon Dec 13 18:17:43 EST 2010
>This can fail if you boot a new kernel on a board with an old FDT that
lacks the gpio node. Calling of_iomap with a NULL np seems like it would
work without crashing anything, so maybe that's not a huge issue.
>>+ vaddr = of_iomap(np, 0);
>>+ if (!vaddr) {
>>+ printk(KERN_CRIT "Could not get gpio node address\n");
>>+ ret = -ENODEV;
>>+ goto err_bcsr;
>>+ }
>A reference count is leaked for the node in this error case because
of_node_put isn't called for the gpio node. Also, iounmap is never called
on vaddr.
>>+ /* Disable USB, through the BCSR7 bits */
Thanks for your inputs. I will fix and resubmit.
Regards,
Rup
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