[PATCH 1/3] lib/bitmap.c: correct a code style and do some optimization in __bitmap_parse

[Pan Xinhui <xinhuix.pan@intel.com>]

We can avoid in-loop incrementation of ndigits.
Save current totaldigits to ndigits before loop,
and check ndigits against totaldigits after the loop.

Signed-off-by: Pan Xinhui <xinhuix.pan@intel.com>
Cc: Yury Norov <yury.norov@gmail.com>
---
  lib/bitmap.c | 7 ++++---
  1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/lib/bitmap.c b/lib/bitmap.c
index a578a01..eb21456 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -367,7 +367,8 @@ int __bitmap_parse(const char *buf, unsigned int buflen,
  
  	nchunks = nbits = totaldigits = c = 0;
  	do {
-		chunk = ndigits = 0;
+		chunk = 0;
+		ndigits = totaldigits;
  
  		/* Get the next chunk of the bitmap */
  		while (buflen) {
@@ -406,9 +407,9 @@ int __bitmap_parse(const char *buf, unsigned int buflen,
  				return -EOVERFLOW;
  
  			chunk = (chunk << 4) | hex_to_bin(c);
-			ndigits++; totaldigits++;
+			totaldigits++;
  		}
-		if (ndigits == 0)
+		if (ndigits == totaldigits)
  			return -EINVAL;
  		if (nchunks == 0 && chunk == 0)
  			continue;
-- 
1.9.1