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authorAlex Vesker <valex@mellanox.com>2018-05-25 20:25:59 +0300
committerSaeed Mahameed <saeedm@mellanox.com>2018-06-26 15:26:34 -0700
commit603b7bcff824740500ddfa001d7a7168b0b38542 (patch)
tree58cc8e39cf706ae2a12da898837cb2441890f0f5 /drivers/net/ethernet/mellanox
parentd14fcb8d877caf1b8d6bd65d444bf62b21f2070c (diff)
download96b-common-603b7bcff824740500ddfa001d7a7168b0b38542.tar.gz
net/mlx5: Fix incorrect raw command length parsing
The NULL character was not set correctly for the string containing the command length, this caused failures reading the output of the command due to a random length. The fix is to initialize the output length string. Fixes: e126ba97dba9 ("mlx5: Add driver for Mellanox Connect-IB adapters") Signed-off-by: Alex Vesker <valex@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox')
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/cmd.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
index 487388aed98f..2db5fe571594 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
@@ -1276,7 +1276,7 @@ static ssize_t outlen_write(struct file *filp, const char __user *buf,
{
struct mlx5_core_dev *dev = filp->private_data;
struct mlx5_cmd_debug *dbg = &dev->cmd.dbg;
- char outlen_str[8];
+ char outlen_str[8] = {0};
int outlen;
void *ptr;
int err;
@@ -1291,8 +1291,6 @@ static ssize_t outlen_write(struct file *filp, const char __user *buf,
if (copy_from_user(outlen_str, buf, count))
return -EFAULT;
- outlen_str[7] = 0;
-
err = sscanf(outlen_str, "%d", &outlen);
if (err < 0)
return err;