Commit 6a75da4a authored by Jesper Juhl's avatar Jesper Juhl Committed by David S. Miller
Browse files

Madge Ambassador ATM Adapter driver: Always release_firmware() in ucode_init()... 


Madge Ambassador ATM Adapter driver: Always release_firmware() in ucode_init() and don't leak memory.

Failure to call release_firmware() will result in memory leak in
drivers/atm/ambassador.c::ucode_init().
This patch makes sure we always call release_firmware() when needed,
thus removing the leak(s).

Yes, I know checkpatch complains about this patch, but it was either that
or completely mess up the existing style, so I opted to use the existing
style and live with the checkpatch related flak.

Signed-off-by: default avatarJesper Juhl <jj@chaosbits.net>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 26877c79

drivers/atm/ambassador.c

+12 −7
Original line number Diff line number Diff line
@@ -1926,6 +1926,7 @@ static int __devinit ucode_init (loader_block * lb, amb_dev * dev) { 
  const struct firmware *fw;

  unsigned long start_address;

  const struct ihex_binrec *rec;

  const char *errmsg = 0;

  int res;



  res = request_ihex_firmware(&fw, "atmsar11.fw", &dev->pci_dev->dev);
@@ -1937,8 +1938,8 @@ static int __devinit ucode_init (loader_block * lb, amb_dev * dev) { 
  /* First record contains just the start address */

  rec = (const struct ihex_binrec *)fw->data;

  if (be16_to_cpu(rec->len) != sizeof(__be32) || be32_to_cpu(rec->addr)) {

    PRINTK (KERN_ERR, "Bad microcode data (no start record)");

    return -EINVAL;

    errmsg = "no start record";

    goto fail;

  }

  start_address = be32_to_cpup((__be32 *)rec->data);
@@ -1950,12 +1951,12 @@ static int __devinit ucode_init (loader_block * lb, amb_dev * dev) { 
    PRINTD (DBG_LOAD, "starting region (%x, %u)", be32_to_cpu(rec->addr),

	    be16_to_cpu(rec->len));

    if (be16_to_cpu(rec->len) > 4 * MAX_TRANSFER_DATA) {

	    PRINTK (KERN_ERR, "Bad microcode data (record too long)");

	    return -EINVAL;

	    errmsg = "record too long";

	    goto fail;

    }

    if (be16_to_cpu(rec->len) & 3) {

	    PRINTK (KERN_ERR, "Bad microcode data (odd number of bytes)");

	    return -EINVAL;

	    errmsg = "odd number of bytes";

	    goto fail;

    }

    res = loader_write(lb, dev, rec);

    if (res)
@@ -1970,6 +1971,10 @@ static int __devinit ucode_init (loader_block * lb, amb_dev * dev) { 
    res = loader_start(lb, dev, start_address);



  return res;

fail:

  release_firmware(fw);

  PRINTK(KERN_ERR, "Bad microcode data (%s)", errmsg);

  return -EINVAL;

}



/********** give adapter parameters **********/

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