USB: storage: fix compile warning

This patch should fix the below compile warning:

drivers/usb/storage/protocol.c: In function 'usb_stor_access_xfer_buf':
drivers/usb/storage/protocol.c:155:22: warning: comparison of distinct
pointer types lacks a cast [enabled by default]

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/usb/storage/protocol.c b/drivers/usb/storage/protocol.c
index f54e5fea9230..12e3c2fac642 100644
--- a/drivers/usb/storage/protocol.c
+++ b/drivers/usb/storage/protocol.c
@@ -152,7 +152,8 @@ unsigned int usb_stor_access_xfer_buf(unsigned char *buffer,
                 return cnt;
 
         while (sg_miter_next(&miter) && cnt < buflen) {
-                unsigned int len = min(miter.length, buflen - cnt);
+                unsigned int len = min_t(unsigned int, miter.length,
+                                buflen - cnt);
 
                 if (dir == FROM_XFER_BUF)
                         memcpy(buffer + cnt, miter.addr, len);