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authorWolfgang Wiedmeyer <wolfgit@wiedmeyer.de>2015-10-23 13:30:20 +0200
committerWolfgang Wiedmeyer <wolfgit@wiedmeyer.de>2015-10-23 13:30:20 +0200
commite7549b926dd3ceec048f5689df90d4ec970c9419 (patch)
treec8645e0b4343c309aac1a3838a17cfcf0893d7b5 /drivers/scsi/aacraid/linit.c
parent499ba610c2829adafbf393c2f3773d73ae4445f3 (diff)
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more driver stuff from 3.2.72
Diffstat (limited to 'drivers/scsi/aacraid/linit.c')
-rw-r--r--drivers/scsi/aacraid/linit.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index c7b6fed..2e658d2 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -771,6 +771,8 @@ static long aac_compat_do_ioctl(struct aac_dev *dev, unsigned cmd, unsigned long
static int aac_compat_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
{
struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
+ if (!capable(CAP_SYS_RAWIO))
+ return -EPERM;
return aac_compat_do_ioctl(dev, cmd, (unsigned long)arg);
}
@@ -895,16 +897,17 @@ static ssize_t aac_show_serial_number(struct device *device,
int len = 0;
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]));
if (len &&
!memcmp(&dev->supplement_adapter_info.MfgPcbaSerialNo[
sizeof(dev->supplement_adapter_info.MfgPcbaSerialNo)-len],
buf, len-1))
- len = snprintf(buf, PAGE_SIZE, "%.*s\n",
+ len = snprintf(buf, 16, "%.*s\n",
(int)sizeof(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,