V4L/DVB: media: video: pvrusb2: remove custom hex_to_bin()

Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 2 insertions, 12 deletions

diff --git a/drivers/media/video/pvrusb2/pvrusb2-debugifc.c b/drivers/media/video/pvrusb2/pvrusb2-debugifc.c
index e9b11e119f62..4279ebb811a1 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-debugifc.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-debugifc.c
@@ -94,8 +94,6 @@ static int debugifc_parse_unsigned_number(const char *buf,unsigned int count,
                                           u32 *num_ptr)
 {
         u32 result = 0;
-        u32 val;
-        int ch;
         int radix = 10;
         if ((count >= 2) && (buf[0] == '0') &&
             ((buf[1] == 'x') || (buf[1] == 'X'))) {
@@ -107,17 +105,9 @@ static int debugifc_parse_unsigned_number(const char *buf,unsigned int count,
         }
 
         while (count--) {
-                ch = *buf++;
-                if ((ch >= '0') && (ch <= '9')) {
-                        val = ch - '0';
-                } else if ((ch >= 'a') && (ch <= 'f')) {
-                        val = ch - 'a' + 10;
-                } else if ((ch >= 'A') && (ch <= 'F')) {
-                        val = ch - 'A' + 10;
-                } else {
+                int val = hex_to_bin(*buf++);
+                if (val < 0 || val >= radix)
                         return -EINVAL;
-                }
-                if (val >= radix) return -EINVAL;
                 result *= radix;
                 result += val;
         }