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[SCSI] aacraid: use lower snprintf() limit

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This is just a cleanup, to silence static checker warnings.  It
doesn't change how the code works.

buf[] can either be BUF_SIZE if this is called from sysfs, or it can
be 16 if it's called from aac_get_adapter_info() via
aac_get_serial_number().  We use the smaller limit here.

sizeof(dev->supplement_adapter_info.MfgPcbaSerialNo) is 12 so there
is actually no chance of hitting either limit.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Achim Leubner <Achim_Leubner@pmc-sierra.com> 
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Dan Carpenter 2011-10-08 13:45:07 +03:00 committed by James Bottomley
parent d15fdd3483
commit dc55b8274d
1 changed files with 4 additions and 3 deletions
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7
drivers/scsi/aacraid/linit.c
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@ -894,16 +894,17 @@ static ssize_t aac_show_serial_number(struct device *device,
int len = 0; int len = 0;
if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0) if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0)
len = snprintf(buf, PAGE_SIZE, "%06X\n", len = snprintf(buf, 16, "%06X\n",
le32_to_cpu(dev->adapter_info.serial[0])); le32_to_cpu(dev->adapter_info.serial[0]));
if (len && if (len &&
!memcmp(&dev->supplement_adapter_info.MfgPcbaSerialNo[ !memcmp(&dev->supplement_adapter_info.MfgPcbaSerialNo[
sizeof(dev->supplement_adapter_info.MfgPcbaSerialNo)-len], sizeof(dev->supplement_adapter_info.MfgPcbaSerialNo)-len],
buf, len-1)) buf, len-1))
len = snprintf(buf, PAGE_SIZE, "%.*s\n", len = snprintf(buf, 16, "%.*s\n",
(int)sizeof(dev->supplement_adapter_info.MfgPcbaSerialNo), (int)sizeof(dev->supplement_adapter_info.MfgPcbaSerialNo),
dev->supplement_adapter_info.MfgPcbaSerialNo); dev->supplement_adapter_info.MfgPcbaSerialNo);
return len;
return min(len, 16);
} }
static ssize_t aac_show_max_channel(struct device *device, static ssize_t aac_show_max_channel(struct device *device,