[U-Boot] [PATCH v7 02/12] lib: strto: fix metric suffix parsing in strtoul[l]

[Miquel Raynal]

While 1kB or 1kiB will be parsed correctly, 1k will return the right
amount, but the metric suffix will not be escaped once the char
pointer updated. Fix this situation by simplifying the move of the
endp pointer.

Signed-off-by: Miquel Raynal <miquel.ray...@bootlin.com>
Reviewed-by: Stefan Roese <s...@denx.de>
---
 lib/strto.c | 22 ++++++++++------------
 1 file changed, 10 insertions(+), 12 deletions(-)

diff --git a/lib/strto.c b/lib/strto.c
index b7fc31d6e5..55ff9f7437 100644
--- a/lib/strto.c
+++ b/lib/strto.c
@@ -94,12 +94,11 @@ unsigned long ustrtoul(const char *cp, char **endp, 
unsigned int base)
                /* fall through */
        case 'k':
                result *= 1024;
-               if ((*endp)[1] == 'i') {
-                       if ((*endp)[2] == 'B')
-                               (*endp) += 3;
-                       else
-                               (*endp) += 2;
-               }
+               (*endp)++;
+               if (**endp == 'i')
+                       (*endp)++;
+               if (**endp == 'B')
+                       (*endp)++;
        }
        return result;
 }
@@ -116,12 +115,11 @@ unsigned long long ustrtoull(const char *cp, char **endp, 
unsigned int base)
                /* fall through */
        case 'k':
                result *= 1024;
-               if ((*endp)[1] == 'i') {
-                       if ((*endp)[2] == 'B')
-                               (*endp) += 3;
-                       else
-                               (*endp) += 2;
-               }
+               (*endp)++;
+               if (**endp == 'i')
+                       (*endp)++;
+               if (**endp == 'B')
+                       (*endp)++;
        }
        return result;
 }
-- 
2.17.1

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