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net/mlx5: Fix uninitialized variable bug in outlen_write()
If sscanf() return 0, outlen is uninitialized and used in kzalloc(),
this is unexpected. We should return -EINVAL if the string is invalid.
Fixes: e126ba97db
("mlx5: Add driver for Mellanox Connect-IB adapters")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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1 changed files with 2 additions and 2 deletions
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@ -1497,8 +1497,8 @@ static ssize_t outlen_write(struct file *filp, const char __user *buf,
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return -EFAULT;
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err = sscanf(outlen_str, "%d", &outlen);
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if (err < 0)
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return err;
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if (err != 1)
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return -EINVAL;
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ptr = kzalloc(outlen, GFP_KERNEL);
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if (!ptr)
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