put_user() may fail, if so return -EFAULT.
Signed-off-by: Kulikov Vasiliy <segooon@xxxxxxxxx>
---
drivers/block/cpqarray.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
index 9473215..d53b029 100644
--- a/drivers/block/cpqarray.c
+++ b/drivers/block/cpqarray.c
@@ -1179,7 +1179,8 @@ out_passthru:
return error;
case IDAGETCTLRSIG:
if (!arg) return -EINVAL;
- put_user(host->ctlr_sig, (int __user *)arg);
+ if (put_user(host->ctlr_sig, (int __user *)arg))
+ return -EFAULT;
return 0;
case IDAREVALIDATEVOLS:
if (MINOR(bdev->bd_dev) != 0)
@@ -1187,7 +1188,8 @@ out_passthru:
return revalidate_allvol(host);
case IDADRIVERVERSION:
if (!arg) return -EINVAL;
- put_user(DRIVER_VERSION, (unsigned long __user *)arg);
+ if (put_user(DRIVER_VERSION, (unsigned long __user *)arg))
+ return -EFAULT;
return 0;
case IDAGETPCIINFO:
{
--
1.7.0.4
--
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