[U-Boot] [PATCH v7 01/13] lib: strto: parse all lowercase metric prefixes in ustrtoul[l]

[Miquel Raynal]

Both ustrtoul and ustrtoull interpret 1k but not 1m or 1g. Even if the
SI symbols for Mega and Giga are 'M' and 'G', certain entries of
eg. mtdparts also use (wrongly) the metric prefix 'm' and 'g'.

I do not see how parsing lowercase prefixes could break anything, so
parse them like their uppercase counterpart.

Signed-off-by: Miquel Raynal <miquel.raynal at bootlin.com>
---
 lib/strto.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/strto.c b/lib/strto.c
index 7f6076909a..84f8d92d57 100644
--- a/lib/strto.c
+++ b/lib/strto.c
@@ -87,9 +87,11 @@ unsigned long ustrtoul(const char *cp, char **endp, unsigned int base)
 	unsigned long result = simple_strtoul(cp, endp, base);
 	switch (**endp) {
 	case 'G':
+	case 'g':
 		result *= 1024;
 		/* fall through */
 	case 'M':
+	case 'm':
 		result *= 1024;
 		/* fall through */
 	case 'K':
@@ -110,9 +112,11 @@ unsigned long long ustrtoull(const char *cp, char **endp, unsigned int base)
 	unsigned long long result = simple_strtoull(cp, endp, base);
 	switch (**endp) {
 	case 'G':
+	case 'g':
 		result *= 1024;
 		/* fall through */
 	case 'M':
+	case 'm':
 		result *= 1024;
 		/* fall through */
 	case 'K':
-- 
2.17.1