linux-next: build warning after merge of the bluetooth tree

[Stephen Rothwell]

Hi all,

After merging the bluetooth tree, today's linux-next build (x86_64
allmodconfig) produced this warning:

drivers/bluetooth/btmtksdio.c: In function 'btmtksdio_interrupt':
drivers/bluetooth/btmtksdio.c:470:2: warning: 'old_len' may be used 
uninitialized in this function [-Wmaybe-uninitialized]
  print_hex_dump(KERN_ERR, "err sdio rx: ", DUMP_PREFIX_NONE, 4, 1,
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          old_data, old_len, true);
          ~~~~~~~~~~~~~~~~~~~~~~~~
drivers/bluetooth/btmtksdio.c:376:15: note: 'old_len' was declared here
  unsigned int old_len;
               ^~~~~~~
drivers/bluetooth/btmtksdio.c:470:2: warning: 'old_data' may be used 
uninitialized in this function [-Wmaybe-uninitialized]
  print_hex_dump(KERN_ERR, "err sdio rx: ", DUMP_PREFIX_NONE, 4, 1,
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
          old_data, old_len, true);
          ~~~~~~~~~~~~~~~~~~~~~~~~
drivers/bluetooth/btmtksdio.c:375:17: note: 'old_data' was declared here
  unsigned char *old_data;
                 ^~~~~~~~

Introduced by commit

  d74eef2834b5 ("Bluetooth: mediatek: add support for MediaTek MT7663S and 
MT7668S SDIO")

-- 
Cheers,
Stephen Rothwell

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