29 lines
1.1 KiB
Diff
29 lines
1.1 KiB
Diff
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From b4170aed36e667e52ce4a353bda1964e3872ab34 Mon Sep 17 00:00:00 2001
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From: David Herrmann <dh.herrmann@gmail.com>
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Date: Tue, 23 Sep 2014 13:38:09 +0200
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Subject: [PATCH] terminal: fix tile-offset calculation
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Binary operators with two pointers as arguments always operate on
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object-size, not bytes. That is, "int *a, *b", (a - b) calculates the
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number of integers between b and a, not the number of bytes.
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Fix our cache-offset calculation to not use sizeof() with full-ptr
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arithmetic.
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---
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src/libsystemd-terminal/grdev.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/src/libsystemd-terminal/grdev.c b/src/libsystemd-terminal/grdev.c
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index c5ea524c69..80a71beeb9 100644
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--- a/src/libsystemd-terminal/grdev.c
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+++ b/src/libsystemd-terminal/grdev.c
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@@ -345,7 +345,7 @@ const grdev_display_target *grdev_display_next_target(grdev_display *display, co
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assert(cache->pipe->tile->display == display);
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assert(display->pipes >= cache);
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- idx = (cache - display->pipes) / sizeof(*cache) + 1;
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+ idx = cache - display->pipes + 1;
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} else {
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idx = 0;
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}
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