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Message-Id: <1449360347-20089-1-git-send-email-linux@rasmusvillemoes.dk> Date: Sun, 6 Dec 2015 01:05:47 +0100 From: Rasmus Villemoes <linux@...musvillemoes.dk> To: William Hubbs <w.d.hubbs@...il.com>, Chris Brannon <chris@...-brannons.com>, Kirk Reiser <kirk@...sers.ca>, Samuel Thibault <samuel.thibault@...-lyon.org>, Greg Kroah-Hartman <gregkh@...uxfoundation.org> Cc: Rasmus Villemoes <linux@...musvillemoes.dk>, speakup@...ux-speakup.org, devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org Subject: [PATCH] staging: speakup: kobjects.c: fix char argument to %02x 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 <linux@...musvillemoes.dk> --- 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 majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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