From: Henry Ptasinski <henryp@broadcom.com>
Date: Mon, 15 Aug 2011 13:34:21 +0000 (+0200)
Subject: staging: brcm80211: fix off-by-one error in swap functions
X-Git-Tag: firefly_0821_release~3680^2~4313^2^2~864^2~279
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=8ac98a56fac0cafb56d900154ac4569a959011c0;p=firefly-linux-kernel-4.4.55.git

staging: brcm80211: fix off-by-one error in swap functions

The original implementation iterated over the data in buf+1 through buf+size,
whereas it should have been over the data in buf through buf+size-1.

Tested on Mac G5 PPC and BCM63281.

Signed-off-by: Henry Ptasinski <henryp@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Reviewed-by: Roland Vossen <rvossen@broadcom.com>
Tested-by: Jonas Gorski <jonas.gorski@gmail.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/staging/brcm80211/brcmsmac/srom.c b/drivers/staging/brcm80211/brcmsmac/srom.c
index 060f06fc1440..7a17f598e499 100644
--- a/drivers/staging/brcm80211/brcmsmac/srom.c
+++ b/drivers/staging/brcm80211/brcmsmac/srom.c
@@ -880,13 +880,15 @@ int srom_var_init(struct si_pub *sih, void *curmap, char **vars, uint *count)
 
 static inline void ltoh16_buf(u16 *buf, unsigned int size)
 {
-	for (size /= 2; size; size--)
+	size /= 2;
+	while (size--)
 		*(buf + size) = le16_to_cpu(*(buf + size));
 }
 
 static inline void htol16_buf(u16 *buf, unsigned int size)
 {
-	for (size /= 2; size; size--)
+	size /= 2;
+	while (size--)
 		*(buf + size) = cpu_to_le16(*(buf + size));
 }