提交 2b1116bb 编写于 作者: M Markus Elfring 提交者: Steve French

CIFS: Use common error handling code in smb2_ioctl_query_info()

Move the same error code assignments so that such exception handling
can be better reused at the end of this function.

This issue was detected by using the Coccinelle software.
Signed-off-by: NMarkus Elfring <elfring@users.sourceforge.net>
Signed-off-by: NSteve French <stfrench@microsoft.com>
上级 cfaa1181
无相关合并请求
......@@ -1524,35 +1524,32 @@ smb2_ioctl_query_info(const unsigned int xid,
if (le32_to_cpu(io_rsp->OutputCount) < qi.input_buffer_length)
qi.input_buffer_length = le32_to_cpu(io_rsp->OutputCount);
if (qi.input_buffer_length > 0 &&
le32_to_cpu(io_rsp->OutputOffset) + qi.input_buffer_length > rsp_iov[1].iov_len) {
rc = -EFAULT;
goto iqinf_exit;
}
if (copy_to_user(&pqi->input_buffer_length, &qi.input_buffer_length,
sizeof(qi.input_buffer_length))) {
rc = -EFAULT;
goto iqinf_exit;
}
le32_to_cpu(io_rsp->OutputOffset) + qi.input_buffer_length
> rsp_iov[1].iov_len)
goto e_fault;
if (copy_to_user(&pqi->input_buffer_length,
&qi.input_buffer_length,
sizeof(qi.input_buffer_length)))
goto e_fault;
if (copy_to_user((void __user *)pqi + sizeof(struct smb_query_info),
(const void *)io_rsp + le32_to_cpu(io_rsp->OutputOffset),
qi.input_buffer_length)) {
rc = -EFAULT;
goto iqinf_exit;
}
qi.input_buffer_length))
goto e_fault;
} else {
pqi = (struct smb_query_info __user *)arg;
qi_rsp = (struct smb2_query_info_rsp *)rsp_iov[1].iov_base;
if (le32_to_cpu(qi_rsp->OutputBufferLength) < qi.input_buffer_length)
qi.input_buffer_length = le32_to_cpu(qi_rsp->OutputBufferLength);
if (copy_to_user(&pqi->input_buffer_length, &qi.input_buffer_length,
sizeof(qi.input_buffer_length))) {
rc = -EFAULT;
goto iqinf_exit;
}
if (copy_to_user(pqi + 1, qi_rsp->Buffer, qi.input_buffer_length)) {
rc = -EFAULT;
goto iqinf_exit;
}
if (copy_to_user(&pqi->input_buffer_length,
&qi.input_buffer_length,
sizeof(qi.input_buffer_length)))
goto e_fault;
if (copy_to_user(pqi + 1, qi_rsp->Buffer,
qi.input_buffer_length))
goto e_fault;
}
iqinf_exit:
......@@ -1568,6 +1565,10 @@ smb2_ioctl_query_info(const unsigned int xid,
free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base);
free_rsp_buf(resp_buftype[2], rsp_iov[2].iov_base);
return rc;
e_fault:
rc = -EFAULT;
goto iqinf_exit;
}
static ssize_t
......
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