From: Dan Streetman <ddstreet@ieee.org>
Date: Mon, 11 May 2015 22:53:36 +0000 (-0400)
Subject: lib: correct 842 decompress for 32 bit
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ca7fc7e962fa067ba31f76a6e5828537394f6481;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

lib: correct 842 decompress for 32 bit

Avoid 64 bit mod operation, which won't work on 32 bit systems.
Simple subtraction can be used instead in this case.

Reported-By: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/lib/842/842_decompress.c b/lib/842/842_decompress.c
index dbeb0581b879..5446ff0c9ba0 100644
--- a/lib/842/842_decompress.c
+++ b/lib/842/842_decompress.c
@@ -185,7 +185,7 @@ static int __do_index(struct sw842_param *p, u8 size, u8 bits, u64 fsize)
 		/* this is where the current fifo is */
 		u64 section = round_down(total, fsize);
 		/* the current pos in the fifo */
-		u64 pos = total % fsize;
+		u64 pos = total - section;
 
 		/* if the offset is past/at the pos, we need to
 		 * go back to the last fifo section