If char is signed and ch happens to be negative, printing ch with "%02x" will not do as intended (when ch is -19, one will get "ffffffed"). Fix that by masking with 0xff.
Signed-off-by: Rasmus Villemoes <[email protected]> --- drivers/staging/speakup/kobjects.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/speakup/kobjects.c b/drivers/staging/speakup/kobjects.c index fdfeb42b2b8f..8b88f03e266b 100644 --- a/drivers/staging/speakup/kobjects.c +++ b/drivers/staging/speakup/kobjects.c @@ -567,7 +567,7 @@ ssize_t spk_var_show(struct kobject *kobj, struct kobj_attribute *attr, if (ch >= ' ' && ch < '~') *cp1++ = ch; else - cp1 += sprintf(cp1, "\\x%02x", ch); + cp1 += sprintf(cp1, "\\x%02x", ch & 0xff); } *cp1++ = '"'; *cp1++ = '\n'; -- 2.6.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
