[PATCH v2 2/3] vsscanf(): do not skip spaces

[Demi Marie Obenour <demi@xxxxxxxxxxxxxxxxxxxxxx>]

Passing spaces before e.g. an integer is usually
not intended.  This was suggested by Christoph in
https://lore.kernel.org/lkml/ZIQrohcizoj4bZWx@xxxxxxxxxxxxx/.

Suggested-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Demi Marie Obenour <demi@xxxxxxxxxxxxxxxxxxxxxx>
---
 lib/vsprintf.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 
8caccdcda0a2b470cda70c9b3837de37207eb512..d2d795d1aff0fd5cc50fb65ffb067067ab9f0dc6
 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -3547,8 +3547,6 @@ int vsscanf(const char *buf, const char *fmt, va_list 
args)
                        char *s = (char *)va_arg(args, char *);
                        if (field_width == -1)
                                field_width = SHRT_MAX;
-                       /* first, skip leading white space in buffer */
-                       str = skip_spaces(str);
 
                        /* now copy until next white space */
                        while (*str && !isspace(*str) && field_width--)
@@ -3635,11 +3633,7 @@ int vsscanf(const char *buf, const char *fmt, va_list 
args)
                        return num;
                }
 
-               /* have some sort of integer conversion.
-                * first, skip white space in buffer.
-                */
-               str = skip_spaces(str);
-
+               /* have some sort of integer conversion. */
                digit = *str;
                if (is_sign && digit == '-') {
                        if (field_width == 1)
-- 
Sincerely,
Demi Marie Obenour (she/her/hers)
Invisible Things Lab