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| author | Jesper Juhl <jj@chaosbits.net> | 2011-01-09 11:32:38 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-01-09 15:45:48 -0800 |
| commit | 6a75da4a1a1d220fc3e32b816e83c258617505c5 (patch) | |
| tree | c7cc5931f5f5637e19892635cdf30ad2bcd8d622 /drivers/atm | |
| parent | 26877c794407855f65c056d7914b2e72ae9b93b8 (diff) | |
| download | op-kernel-dev-6a75da4a1a1d220fc3e32b816e83c258617505c5.zip op-kernel-dev-6a75da4a1a1d220fc3e32b816e83c258617505c5.tar.gz | |
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: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/atm')
| -rw-r--r-- | drivers/atm/ambassador.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/drivers/atm/ambassador.c b/drivers/atm/ambassador.c index ffe9b65..9f47e86 100644 --- a/drivers/atm/ambassador.c +++ b/drivers/atm/ambassador.c @@ -1926,8 +1926,9 @@ 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); if (res) { PRINTK (KERN_ERR, "Cannot load microcode data"); @@ -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 **********/ |
